Prof. Dr.-Ing. Ilona Rolfes

  • Professor/in - Lehrstuhl Hochfrequenzsysteme
Rolfes, Ilona

Adresse

Prof. Ilona Rolfes
Ruhr-Uni­ver­si­tät Bo­chum
Uni­ver­si­täts­stra­ße 150
D-44780 Bo­chum

Raum
ID 04/335
Telefon:
(+49)(0)234 / 32 - 27383
Fax:
(+49)(0)234 / 32 - 14167
E-Mail:
ilona.rolfes@rub.de
Webseite:
http://www.hfs.rub.de/

Lebenslauf

Ilona Rolfes absolvierte das Studium der Elektrotechnik und Informationstechnik an der Ruhr-Universität Bochum. Von 1997 bis 2005 arbeitete sie als wissenschaftliche Mitarbeiterin am Institut für Hochfrequenztechnik an der Ruhr-Universität Bochum. Ihre Promotion erfolgte im Jahre 2002 auf dem Gebiet der hochfrequenten Präzisionsmesstechnik. Mitte 2005 folgte Frau Rolfes einem Ruf auf eine Juniorprofessor an die Leibniz Universität Hannover, wo sie ab 2006 das Institut für Hochfrequenztechnik und Funksysteme leitete. In 2009 erhielt Frau Rolfes Rufe auf Professuren an die Universität Stuttgart, an die Leibniz-Universität Hannover und an die Ruhr-Universität Bochum, wo sie seit 2010 den Lehrstuhl für Hochfrequenzsysteme leitet und Prodekanin für Forschung ist. Die Forschungsthemen von Frau Rolfes umfassen die Hochfrequenzmesstechnik mit Blick auf die vektorielle Netzwerkanalyse, die Material- und Rauschcharakterisierung sowie die Sensorik für Radarsysteme und drahtlose Lösungen für Kommunikationssysteme.

Für Ihre Forschungsarbeiten erhielt sie im Jahr 2001 den Europäischen Mikrowellenpreis, in 2004 den Dr. Heinrich-Kost Preis, in 2009 in einem Forschungskonsortium den EEEfCOM-Innovationspreis und in 2011 den IEEE MTT Outstanding Young Engineer Award.

Ämter und Mitgliedschaften

  • seit 2015: Vertrauensdozentin der Deutschen Forschungsgemeinschaft (DFG) an der Ruhr-Universität Bochum
  • seit 2015: Ordentliches Mitglied der Deutschen Akademie der Technikwissenschaften (acatech)
  • seit 2015: Stellvertretende Vorsitzende des Vorstandes der Informationstechnischen Gesellschaft ITG im VDE
  • seit 2013: Kuratorin des Fraunhofer-Instituts FHR in Wachtberg
  • seit 2012: Mitglied des Internationalen Advisory Boards des GigaHertz-Centers, Göteburg, Schweden
  • seit 2010: Vizepräsidentin des Deutschen Hochschulverbandes
  • Vorstand des MTT-AP Chapters (Microwave Theory and Techniques sowie Antennas and Propagation Society) im IEEE (Institute of Electrical and Electronics Engineers)
  • Mitglied der Kommission A: Elektromagnetische Metrologie der U.R.S.I. (International Union of Radio Science)
  • Mitglied des VDE-ITG-Fachausschusses 9.1 „Messverfahren der Informationstechnik“ (Informationstechnische Gesellschaft im Verband der Elektrotechnik, der Elektronik und Informatik)

Lehrveranstaltungen

Veröffentlichungen

2017
A Simulation Concept Based on the FDFD Method for Ground Penetrating Radar Used in Humanitarian Demining

Jochen Jebramcik, Jan Barowski, Christoph Baer, Ilona Rolfes - European Microwave Conference 2017, Nuremberg, Germany.

Hardware-beschleunigte eingebettete SAR -Prozessoren für Echtzeit FMCW -Radar Anwendungen

Jonas Wagner, Jan Barowski, Tobias Kalb, Diana Göhringer, Ilona Rolfes - Klein­heu­ba­cher Ta­gung 2017, U.R.S.I. Lan­des­aus­schuss in der Bun­des­re­pu­blik Deutsch­land e.V., Mil­ten­berg, Ger­ma­ny, Sep 25-27, 2017

Implementierung eines schnellen numerischen GPR -Simulators zur stochastischen Analyse von improvisierten Sprengsätzen in Kolumbien

Jochen Jebramcik, Jan Barowski, Christoph Baer, Ilona Rolfes - Klein­heu­ba­cher Ta­gung 2017, U.R.S.I. Lan­des­aus­schuss in der Bun­des­re­pu­blik Deutsch­land e.V., Mil­ten­berg, Ger­ma­ny, Sep 25-27, 2017

Realisierung einer temperaturstabilen Multipol -Resonanz -Sonde in LTCC -Technologie für die Plasmadiagnostik

Dennis Pohle, Christian Schulz, Moritz Oberberg, Peter Uhlig, Alexandra Serva, Peter Awakowicz, Ilona Rolfes - Klein­heu­ba­cher Ta­gung 2017, U.R.S.I. Lan­des­aus­schuss in der Bun­des­re­pu­blik Deutsch­land e.V., Mil­ten­berg, Ger­ma­ny, Sep 25-27, 2017

A Newly Developed mm-Wave Sensor for Detecting Plaques of Arterial Vessels

Sebastian Vogt, Markus Deter, David Wagner, Jan Wessel, Rabia Ramzan, Wilhelm Nimphius, Anette Ramaswamy, Subhajit Guiha, Christian Wenger, Farabi Jamal, Mohammed Hussein, Ulrich Schmann, Betram Schmidt, Georg Rose, Christoph Dahl, Ilona Rolfes, Gordon Notzon, Christoph Baer, Thomas Musch

Ground Penetrating Synthetic Aperture Radar Imaging Providing Soil Permittivity Estimation

Christoph Baer, Jan Barowski, Jochen Jebramcik, Gutierrez, Sergio, Vega, Felix, Ilona Rolfes - in Proceedings IEEE MTT-S International Microwave Symposium 2017, Honolulu, Hawaii, USA.

Dielectric Phantom Materials for Broadband Biomedical Applications

Birk Hattenhorst, Malte Mallach, Jan Barowski, Ilona Rolfes, Christoph Baer, Thomas Musch - in Proceedings if IEEE MTT-S International Microwave Bio Conference 2017, Gothenburg, Sweden.

Real-Time Imaging System for Millimeter Wave Synthetic Aperture Radar Sensors

Jan Barowski, Christoph Baer, Ilona Rolfes - in Proceedings IEEE MTT-S International Microwave Bio Conference 2017, Gothenburg, Sweden.

On the Usability of low-cost Inertial Navigation Systems for Free-Hand SAR Imaging at GPR-Frequencies

Christoph Baer, Jan Barowski, Ilona Rolfes - in Proceedings of Sensors Applications Symposium 2017, Glassboro, New Jersey, USA.

Im Kampf gegen Landminen

Christoph Baer, Thomas Musch, Ilona Rolfes - DFG Magazin Forschung, Vol 1 2017, pp 20-23, WILEY-VCH.

2016
Plasma Diagnostics in Dielectric Deposition Processes

Christian Schulz, Ilona Rolfes - IEEE Sensors 2016, Orlando, Florida, USA, accepted, Oct 30-Nov 2, 2016

Collision Frequency Determination of Low-Pressure Plasmas based on RF-Reflectometry

Christian Schulz, Moritz Oberberg, Peter Awakowicz, Ilona Rolfes - 46th European Microwave Conference (EuMC), London, United Kingdom, Oct 4-6, 2016

MIMO Radar Concepts based on Antenna Arrays with Fractal Boundaries

Christoph Dahl, Michael Vogt, Ilona Rolfes - 13th European Radar Conference (EuRAD), Lon­don, United King­dom, Oct 5-7, 2016

A new calibration method for the measurement of a multiport microwave tomography system with a 2-port vector network analyzer

Marc Zimmermanns, Ilona Rolfes, Malte Mallach, Patrik Gebhardt, Thomas Musch - IEEE 46th Eu­ropean Micro­wa­ve Con­fe­rence 2016 (EuMC), pp. 385-388, DOI: 10.1109/EuMC.2016.7824359, London, United Kingdom, Oct 4-6, 2016

Fractal Antenna Configurations for MIMO Radar Applications

Christoph Dahl, Michael Vogt, Ilona Rolfes - Klein­heu­ba­cher Ta­gung 2016, U.R.S.I. Lan­des­aus­schuss in der Bun­des­re­pu­blik Deutsch­land e.V., Mil­ten­berg, Ger­ma­ny, Sep 26-28, 2016

Microwave Near-Field Sensor for the Contactless Detection of Material Fluctuations

Birk Hattenhorst, Christian Schulz, Ilona Rolfes, Christoph Baer, Thomas Musch - European Microwave Conference 2016, London, United Kingdom

A Polarimetric, Low Ringing UWB Antenna for Ground Penetrating Radar Operation

Christoph Baer, Christian Schulz, Ilona Rolfes, Thomas Musch - IEEE Antennas and Propagation Symposium 2016, Fajardo, Puerto Rico, June 26 - July 1 2016

An Electronically Reconfigurable Reflectarray Based on Binary Phase Shifters for K-Band Radar Applications

Helen Theißen, Christoph Dahl, Ilona Rolfes, Thomas Musch - Ger­man Micro­wa­ve Con­fe­rence (GeMiC 2016), pp. 321-324, doi: 10.1109/GEMIC.2016.7461621, Bo­chum, Ger­ma­ny, March 14-16, 2016

Analysis of Composite Materials with Periodically Aligned Inclusions Using 3D EM Field Simulations

Christoph Baer, Birk Hattenhorst, Christian Schulz, Bianca Will, Ilona Rolfes, Thomas Musch - Ger­man Micro­wa­ve Con­fe­rence (GeMiC 2016), pp. 120-123, doi: 10.1109/GEMIC.2016.7461571, Bo­chum, Ger­ma­ny, March 14-16, 2016

Monitoring of Low Pressure Plasmas with a Calibrated Probe

Jan Niclas Runkel, Christian Schulz, Moritz Oberberg, Peter Awakowicz, Ilona Rolfes - Ger­man Micro­wa­ve Con­fe­rence (GeMiC 2016), pp. 43-46, doi: 10.1109/GEMIC.2016.7461551, Bo­chum, Ger­ma­ny, March 14-16, 2016

Monitoring of Low Pressure Plasmas with a Calibrated Probe

Jan Niclas Runkel, Christian Schulz, Ilona Rolfes, Moritz Oberberg, Peter Awakowicz - 2016 GERMAN MICROWAVE CONFERENCE (GEMIC) Book Series: German Microwave Conference Pages: 43-46 Published: 2016

Monostatic and Thickness-Independent Material Characterisation based on Microwave Ellipsometry

Jan Barowski, Thorsten Schultze, Ingolf Willms, Ilona Rolfes - Ger­man Micro­wa­ve Con­fe­rence (GeMiC 2016), pp. 449-452, doi: 10.1109/GEMIC.2016.7461652, Bochum, Ger­ma­ny, March 14-16, 2016

Multi-spectral echo signal processing for improved detection and classification of radar targets

Michael Vogt, Neumann, Thorsten, Michael Gerding, Christoph Dahl, Ilona Rolfes - Ger­man Micro­wa­ve Con­fe­rence (GeMiC 2016), pp. 309-312, doi: 10.1109/GEMIC.2016.7461618, Bo­chum, Ger­ma­ny, March 14-16, 2016

Multiport Calibration for Microwave Tomography Systems

Marc Zimmermanns, Ilona Rolfes, Patrik Gebhardt, Malte Mallach, Thomas Musch - Ger­man Micro­wa­ve Con­fe­rence (GeMiC 2016), pp. 96-99, doi: 10.1109/GEMIC.2016.7461565, Bo­chum, Ger­ma­ny, March 14-16, 2016

Vergleich eines numerischen und analytischen Modells zur Simulation der Modenausbreitung in einem Mikrowellenplasma

Daniel Szeremley, Ralf Peter Brinkmann, Thomas Mussenbrock, Marc Zimmermanns, Ilona Rolfes, Denis Eremin - DPG Früh­jahrs­ta­gung 2016, Hannover, Ger­ma­ny, 29 Fe­bru­ary - 04 March, oral cont­ri­bu­ti­on

Diagnostics of plasma processes based on parallelized spatially resolved in-situ reflection measurements

Christian Schulz, Jan Niclas Runkel, Moritz Oberberg, Peter Awakowicz, Ilona Rolfes - IEEE Transactions on Microwave Theory and Techniques, Vol. 64, No. 2, pp. 616-623; DOI: 10.1109/TMTT.2015.2510653; Feb 2016

Diagnostics of Plasma Processes Based on Parallelized Spatially Resolved In-Situ Reflection Measurements

Christian Schulz, Jan Niclas Runkel, Moritz Oberberg, Peter Awakowicz, Ilona Rolfes - IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES Volume: 64 Issue: 2 Pages: 616-623 DOI: 10.1109/TMTT.2015.2510653 Published: FEB 2016

2015
Mode analysis for a microwave driven plasma discharge: A comparison between an analytical model and numerical results

Daniel Szeremley, Marc Zimmermanns, Ilona Rolfes, Denis Eremin, Ralf Peter Brinkmann, Thomas Mussenbrock - WELT­PP-18, De­cem­ber 3-4, 2015 at Rol­duc, Kerk­ra­de, the Nether­lands

Mode analysis for a microwave driven plasma discharge: A comparison between analytical and numerical results

Daniel Szeremley, Marc Zimmermanns, Ilona Rolfes, Thomas Mussenbrock, Ralf Peter Brinkmann, Denis Eremin - 68th An­nual Ga­se­ous Elec­tro­nics Con­fe­rence/9th In­ter­na­tio­nal Con­fe­rence on Re­ac­tive Plas­mas/33rd Sym­po­si­um on Plas­ma Pro­ces­sing, Ho­no­lu­lu, USA, Oc­to­ber 12-15 2015

Analyse und Nachbildung der Ankunftszeit von Mehrwegekomponenten in Kanalimpulsantworten bei bewegten Sendern oder Empfängern

Bastian Meiners, Jan Barowski, Artur Nalobin, Ilona Rolfes - Klein­heu­ba­cher Ta­gung 2015, U.R.S.I. Lan­des­aus­schuss in der Bun­des­re­pu­blik Deutsch­land e.V., Mil­ten­berg, Ger­ma­ny, Sep 28-30, 2015

Charakterisierung der Topografie gaußscher Oberflächen mithilfe bildgebender Radarverfahren

Dennis Pohle, Jan Barowski, Timo Jaeschke, Nils Pohl, Ilona Rolfes - Klein­heu­ba­cher Ta­gung 2015, U.R.S.I. Lan­des­aus­schuss in der Bun­des­re­pu­blik Deutsch­land e.V., Mil­ten­berg, Ger­ma­ny, Sep 28-30, 2015

Comparison of a numerical and analytical model for simulation of the mode propagation in a microwave driven plasma discharges

Daniel Szeremley, Marc Zimmermanns, Ilona Rolfes, Thomas Mussenbrock, Ralf Peter Brinkmann, Denis Eremin - 42nd IEEE International Conference on Plasma Science (ICOPS), Antalya, Turkey, May 24-28, 2015

Ein selbst-referentielles Messsystem für die Bildgebung auf Basis des synthetischen Apertur Radars

Jan Barowski, Dennis Pohle, Timo Jaeschke, Nils Pohl, Ilona Rolfes - Klein­heu­ba­cher Ta­gung 2015, U.R.S.I. Lan­des­aus­schuss in der Bun­des­re­pu­blik Deutsch­land e.V., Mil­ten­berg, Ger­ma­ny, Sep 28-30, 2015

Entwicklung einer elektronisch schwenkbaren Antenne auf Basis einer planar gespeisten sphärischen Linse für Radarmessungen

Jochen Jebramcik, Jan Barowski, Ilona Rolfes - Klein­heu­ba­cher Ta­gung 2015, U.R.S.I. Lan­des­aus­schuss in der Bun­des­re­pu­blik Deutsch­land e.V., Mil­ten­berg, Ger­ma­ny, Sep 28-30, 2015

Evaluation of a MIMO Radar Concept based on a Hexagonal Antenna Configuration

Christoph Dahl, Michael Vogt, Ilona Rolfes - Klein­heu­ba­cher Ta­gung 2015, U.R.S.I. Lan­des­aus­schuss in der Bun­des­re­pu­blik Deutsch­land e.V., Mil­ten­berg, Ger­ma­ny, Sep 28-30, 2015

Mehrtor-Kalibrierverfahren für die Mikrowellentomografie

Marc Zimmermanns, Patrik Gebhardt, Malte Mallach, Thomas Musch, Ilona Rolfes - Klein­heu­ba­cher Ta­gung 2015, U.R.S.I. Lan­des­aus­schuss in der Bun­des­re­pu­blik Deutsch­land e.V., Mil­ten­berg, Ger­ma­ny, Sep 28-30, 2015

Sensornetzwerk zur ortsaufgelösten Diagnostik in dielektrisch beschichtenden Plasmaprozessen

Jan Niclas Runkel, Christian Schulz, Ilona Rolfes - Klein­heu­ba­cher Ta­gung 2015, U.R.S.I. Lan­des­aus­schuss in der Bun­des­re­pu­blik Deutsch­land e.V., Mil­ten­berg, Ger­ma­ny, Sep 28-30, 2015

Electron Density Determination for Plasma Assisted Sterilization Processes

Christian Schulz, Jan Niclas Runkel, Ilona Rolfes - IEEE MTT-S In­ter­na­tio­nal Micro­wa­ve Work­shop Se­ries on RF and Wire­less Tech­no­lo­gies for Bio­me­di­cal and Health­ca­re Ap­p­li­ca­ti­ons (IMWS-BIO), pp. 112-113, doi: 10.1109/IMWS-BIO.2015.7303803, Tai­pei, Tai­wan, Sep 21-23, 2015

Comparison of Virtual Arrays for MIMO Radar Applications based on Hexagonal Configurations

Christoph Dahl, Michael Vogt, Ilona Rolfes - IEEE Eu­ropean Micro­wa­ve Con­fe­rence 2015 (EuRAD), pp. 417-420, DOI: 10.1109/EuRAD.2015.7346326, Paris, France, Sep 9-11, 2015

Cha­rac­te­ri­zing sur­face pro­files uti­li­zing mm-wa­ve FMCW SAR ima­ging

Jan Barowski, Dennis Pohle, Timo Jaeschke, Nils Pohl, Ilona Rolfes - 45th European Microwave Conference (EuMC), pp. 446-449, DOI: 10.1109/EuMC.2015.7345796; Paris, France, Sep 6-11, 2015

Utilization of the array factor for narrowband direction of arrival estimation

Artur Nalobin, Ilona Rolfes - IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, pp. 404-405, doi: 10.1109/APS.2015.7304588, Vancouver, BC, Canada, July 13-19, 2015

An 80 GHz radar level measurement system with dielectric lens antenna

Michael Vogt, Christian Schulz, Christoph Dahl, Ilona Rolfes, Michael Gerding - Proceedings: International Radar Symposium, pp. 712-717, June 24-26, 2015, Dresden, Germany.

Microwave Sensor Concept for the Detection of Gas Inclusions inside Microfluidic Channels

Birk Hattenhorst, Helen Theißen, Christian Schulz, Ilona Rolfes, Christoph Baer, Thomas Musch - 2015 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications, Taipei, Taiwan. Sep. 2015

On the Human Blood Permittivity: Model Parameters and Substitution Material for mmWave Applications

Christoph Baer, Christian Schulz, Gordon Notzon, Ilona Rolfes, Thomas Musch - 2015 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications, Taipei, Taiwan. Sep. 2015

Conformal mm-Wave Antennas for Catheter embedded Atherosclerotic Plaque Sensors

Gordon Notzon, Christoph Dahl, Ilona Rolfes, Christoph Baer, Thomas Musch - IEEE European Microwave Conference 2015, Paris, France.

Electromagnetic Characterization of Fluid Vortices by means of Three-Dimensional Field Simulations

Birk Hattenhorst, Christian Schulz, Ilona Rolfes, Christoph Baer, Thomas Musch - IEEE European Microwave Conference 2015, Paris, France. Sep. 2015

Dielectric Waveguides for Industrial Radar Applications

Christoph Baer, Christian Schulz, Ilona Rolfes, Thomas Musch - International Journal of Microwaves and Wireless Technologies, Cambridge University Press and the European Microwave Association,2015 doi: 10.1017/S1759078715000136.

Investigation of a Circular TE11-TE01 Mode Converter in Stepped Waveguide Technique

Christian Schulz, Christoph Baer, Thomas Musch, Ilona Rolfes, Bianca Will - International Journal of Microwaves and Wireless Technologies, Cambridge University Press and the European Microwave Association, 2015 doi:10.1017/S1759078715000203.

A numerical approach for simulations of the mode propagation in a microwave driven plasma discharge

Daniel Szeremley, Marc Zimmermanns, Ilona Rolfes, Ralf Peter Brinkmann, Thomas Mussenbrock, Denis Eremin - 42nd IEEE In­ter­na­tio­nal Con­fe­rence on Plas­ma Sci­ence (ICOPS), An­ta­lya, Tur­key, May 24-28, 2015 (oral contribution)

Parallelization Concept for Spatially Resolved In-Situ Plasma Measurements

Christian Schulz, Jan Niclas Runkel, Ilona Rolfes - IEEE International Microwave Symposium (IMS), Phoenix, USA, May 17 – 22, 2015

Effective Permittivity Determination of Randomized Mixed Materials using 3D Electromagnetic Simulations

Christoph Baer, Birk Hattenhorst, Christian Schulz, Bianca Will, Ilona Rolfes, Thomas Musch - IEEE International Microwave Symposium 2015, Phoenix, USA.

The Planar Multipole Resonance Probe: Challenges and Prospects of a Planar Plasma Sensor

Christian Schulz, Tim Styrnoll, Peter Awakowicz, Ilona Rolfes - IEEE Transactions on Instrumentation and Measurement, Vol. 64, No. 4, pp. 857 - 864; DOI: 10.1109/TIM.2014.2358111, April 2015

Investigation on the Geometric Properties of Multipath Components in Indoor Radio Channels

Bastian Meiners, Jan Barowski, Artur Nalobin, Ilona Rolfes - 9th European Conference on Antennas and Propagation (EuCAP 2015), pp.1-5, Lisboa, Portugal, April 12-17, 2015

A Monte-Carlo approach to modeling radio propagation by ray-tracing

Jan Barowski, Bastian Meiners, Ilona Rolfes - 9th European Conference on Antennas and Propagation (EuCAP), pp. 1-4, Lisbon, Portugal, April 12-17, 2015

The Planar Multipole Resonance Probe: Challenges and Prospects of a Planar Plasma Sensor

Christian Schulz, Tim Styrnoll, Peter Awakowicz, Ilona Rolfes - IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT Volume: 64 Issue: 4 Pages: 857-864 DOI: 10.1109/TIM.2014.2358111 Published: APR 2015

A Two-Dimensional Radar Simulator for Level Measurement of Bulk Material in Silos

Christoph Dahl, Michael Vogt, Ilona Rolfes - Ger­man Micro­wa­ve Con­fe­rence (GeMiC 2015), pp. 221-224, doi: 10.1109/GEMIC.2015.7107793, Nu­rem­berg, Ger­ma­ny, March 16-18, 2015

Development and Analysis of a Modified Saleh-Valenzuela Channel Model for the UHF Band

Artur Nalobin, Sven Dortmund, Sebastian Sczyslo, Jan Barowski, Bastian Meiners, Ilona Rolfes - German Microwave Conference (GeMiC 2015), pp. 44-47, doi: 10.1109/GEMIC.2015.7107748, Nuremberg, Germany, March 16-18, 2015

Numerische Analyse der Ausbreitung von Mikrowellen in einem Plasma

Daniel Szeremley, Ralf Peter Brinkmann, Thomas Mussenbrock, Marc Zimmermanns, Ilona Rolfes, Denis Eremin - DPG Früh­jahrs­ta­gung 2015, Bochum, Ger­ma­ny, 4 March, oral cont­ri­bu­ti­on

2014
Narrowband direction-of-arrival estimation with a single antenna using compressed sensing

Artur Nalobin, Ilona Rolfes - Asia-Pacific Microwave Conference (APMC 2014), Sendai, Japan, Nov 4-7, 2014

The Multipole Resonance Probe: Progression and Evaluation of a Process Compatible Plasma Sensor

Christian Schulz, Tim Styrnoll, Robert Storch, Peter Awakowicz, Thomas Musch, Ilona Rolfes - IEEE Sensors Journal, Vol.14, No.10, pp. 3408-3417, DOI: 10.1109/JSEN.2014.2333659, Oct 2014

Narrowband direction-of-arrival estimation of near-field sources using compressed sensing

Artur Nalobin, Ilona Rolfes - 44th European Microwave Conference (EuMC), pp. 69-72, DOI: 10.1109/EuMC.2014.6986371, Roma, Italy, Oct 6-9, 2014

A Broadband Circular TE11- to TE01-Mode Converter using Stepped Waveguide Technique

Christian Schulz, Bianca Will, Ilona Rolfes - 44th IEEE Eu­ropean Micro­wa­ve Week (EuMW), pp. 311-314, DOI: 10.1109/EuMC.2014.6986432, Roma, Italy, Oct 5 - Nov 10, 2014

A Robust Dielectric Feeding Concept for Harsh Environmental TLPR Antennas

Christoph Baer, Christian Schulz, Ilona Rolfes, Thomas Musch - 44th IEEE Eu­ropean Micro­wa­ve Week (EuMW), pp. 297-300, DOI: 10.1109/EuRAD.2014.6991266, Roma, Italy, Oct 5 - Nov 10, 2014

Analysis and Metrological Evaluation of an 80 GHz Industrial Radar Level Measurement System with Dielectric Lens Antenna

Michael Vogt, Christian Schulz, Christoph Dahl, Christoph Schmits, Ilona Rolfes, Michael Gerding - Klein­heu­ba­cher Ta­gung 2014, U.R.S.I. Lan­des­aus­schuss in der Bun­des­re­pu­blik Deutsch­land e.V., Mil­ten­berg, Ger­ma­ny, Sep 29 - Oct 1, 2014

Charakterisierung eines fokussierenden Freiraummessplatzes für Doppeltransmissionsmessungen unter Verwendung eines Fresnelzonenplattenreflektors bei 24 GHz

Marc Zimmermanns, Bianca Will, Ilona Rolfes - Klein­heu­ba­cher Ta­gung 2014, U.R.S.I. Lan­des­aus­schuss in der Bun­des­re­pu­blik Deutsch­land e.V., Mil­ten­berg, Ger­ma­ny, Sep 29 - Oct 1, 2014

Evaluation of Concepts for Surface Estimation of Bulk Solids in Silos Using a Two Dimensional Radar Simulator

Christoph Dahl, Michael Vogt, Ilona Rolfes - Klein­heu­ba­cher Ta­gung 2014, U.R.S.I. Lan­des­aus­schuss in der Bun­des­re­pu­blik Deutsch­land e.V., Mil­ten­berg, Ger­ma­ny, Sep 29 - Oct 1, 2014

Kalibrierung und Verifikation eines Ray-Tracing Modells zur Simulation von Funkkanälen für die drahtlose Audioübertragung

Bastian Meiners, Sven Dortmund, Sebastian Sczyslo, Jan Barowski, Artur Nalobin, Ilona Rolfes - Klein­heu­ba­cher Ta­gung 2014, U.R.S.I. Lan­des­aus­schuss in der Bun­des­re­pu­blik Deutsch­land e.V., Mil­ten­berg, Ger­ma­ny, Sep 29 - Oct 1, 2014

Measurements of Radio Channel Characteristics for Propagation Models used by Cognitive Radio Systems

Jan Barowski, Bastian Meiners, Artur Nalobin, Ilona Rolfes - Klein­heu­ba­cher Ta­gung 2014, U.R.S.I. Lan­des­aus­schuss in der Bun­des­re­pu­blik Deutsch­land e.V., Mil­ten­berg, Ger­ma­ny, Sep 29 - Oct 1, 2014

Untersuchung eines Verfahrens für die Winkelschätzung zur Reduzierung der Antennengröße für Nahfeldszenarien

Artur Nalobin, Jan Barowski, Bastian Meiners, Ilona Rolfes - Klein­heu­ba­cher Ta­gung 2014, U.R.S.I. Lan­des­aus­schuss in der Bun­des­re­pu­blik Deutsch­land e.V., Mil­ten­berg, Ger­ma­ny, Sep 29 - Oct 1, 2014

A System Simulator Including Channel and Frontend Models for Cognitive Professional Wireless Microphones

Jan Barowski, Bastian Meiners, Artur Nalobin, Sven Dortmund, Sebastian Sczyslo, Ilona Rolfes - IEEE International Workshop on Cognitive Cellular Systems (CCS), pp. 1-3, DOI: 10.1109/CCS.2014.6933786 Rhine River, Germany, Sep 2-4, 2014

A Stacked Sensor Concept for Industry Compatible Plasma Diagnostics

Christian Schulz, Bianca Will, Ilona Rolfes - International Conference on Electromagnetics in Advanced Applications (ICEAA), pp. 683-686, DOI: 10.1109/ICEAA.2014.6903945, Palm Beach, Aruba, Kingdom of the Netherlands, Aug 3 – 9, 2014

Narrow-band indoor localization in cognitive radio networks using compressed sensing

Artur Nalobin, Ilona Rolfes - An­ten­nas and Pro­pa­ga­ti­on So­cie­ty In­ter­na­tio­nal Sym­po­si­um (AP­SUR­SI), pp. 1167-1168, DOI: 10.1109/APS.2014.6904910, Memphis, Tennessee, USA, July 6-11, 2014

A Multi-Frequency Approach on Reflectometer Calibration Techniques

Marc Zimmermanns, Bianca Will, Ilona Rolfes - Ger­man Micro­wa­ve Con­fe­rence (GeMiC 2014), pp. 1-4, Aa­chen, Ger­ma­ny, March 10-12, 2014

Comparison of the Channel Impulse Response Interpolation Algorithm and Channel Measurements

Bastian Meiners, Jan Barowski, Artur Nalobin, Ilona Rolfes - Ger­man Micro­wa­ve Con­fe­rence (GeMiC 2014), pp. 1-4, Aa­chen, Ger­ma­ny, March 10-12, 2014

Empirical Investigations on the Second Moment Characterization of the Frequency Selectivity of Indoor Fading Channels

Artur Nalobin, Jan Barowski, Bastian Meiners, Sven Dortmund, Sebastian Sczyslo, Ilona Rolfes - Ger­man Micro­wa­ve Con­fe­rence (GeMiC 2014), pp. 1-3, Aachen, Ger­ma­ny, March 10-12, 2014

Indoor Localization of Wireless Audio Transmissions Using a Distributed Sensing Grid

Jan Barowski, Bastian Meiners, Artur Nalobin, Sven Dortmund, Sebastian Sczyslo, Ilona Rolfes - Ger­man Micro­wa­ve Con­fe­rence (GeMiC 2014), pp. 1-4, Aa­chen, Ger­ma­ny, March 10-12, 2014

A miniaturized soil moisture sensor based on time domain transmissometry

Bianca Will, Ilona Rolfes - Sensors Applications Symposium (SAS), IEEE, pp. 233-236, DOI: 10.1109/SAS.2014.6798952, Queenstown, New Zealand, Feb 18-20, 2014

A New Approach On Advanced Compact Plasma Sensors for Industrial Plasma Applications

Christian Schulz, Ilona Rolfes - IEEE Sensors Applications Symposium, pp. 263-266, DOI: 10.1109/SAS.2014.6798958, Queenstown, New Zealand, Feb 18–20, 2014

2013
A Millimeter-Wave based Measuring Method for the Differentiation of Atherosclerotic Plaques

Christoph Baer, Gordon Notzon, Christoph Dahl, Christian Schulz, Bianca Will, Ilona Rolfes, Thomas Musch - IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO 2013), pp. 1-4, DOI: 10.1109/IMWS-BIO.2013.6756167, Singapore, Dec 9 – 11, 2013

Supervision and Control of Medical Sterilization Processes Utilizing the Multipole Resonance Probe

Christian Schulz, Tim Styrnoll, Peter Awakowicz, Ilona Rolfes - IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO 2013), pp. 1-3, DOI: 10.1109/IMWS-BIO.2013.6756158, Singapore, Dec 9 – 11, 2013

Comparative study of moisture measurements by time domain transmissometry

Bianca Will, Ilona Rolfes - IEEE Sen­sors, pp. 1-4, DOI: 10.1109/ICSENS.2013.6688529, Bal­ti­more, Ma­ry­land, USA, Nov 3–6, 2013

The Multipole Resonance Probe: Evolution of a Plasma Sensor

Christian Schulz, Tim Styrnoll, Jens Oberrath, Robert Storch, Peter Awakowicz, Ralf Peter Brinkmann, Thomas Musch, Thomas Mussenbrock, Ilona Rolfes - IEEE Sensors, pp. 1-4, DOI: 10.1109/ICSENS.2013.6688324, Baltimore, Maryland, USA, Nov 3–6, 2013

A feeding concept of a dielectric hemispherical lens antenna for polarimetric radar applications

Christoph Dahl, Christian Schulz, Bianca Will, Ilona Rolfes, Christoph Baer, Thomas Musch - 43rd Eu­ropean Micro­wa­ve Con­fe­rence (EuMC), pp. 1683-1686, Nu­rem­berg, Ger­ma­ny, Oct 6-10, 2013

Characterization of a Beam Steering Lens Antenna for Industrial Radar Measurements in Harsh Environments

Christian Schulz, Christoph Baer, Nils Pohl, Thomas Musch, Bianca Will, Ilona Rolfes - 10th European Radar Conference (EuRAD 2013), pp. 117-120, Nuremberg, Germany, Oct 9-11, 2013

Empirical and site specific eigenmode characterization of an indoor radio propagation channel in the UHF band

Artur Nalobin, Sven Dortmund, Sebastian Sczyslo, Ilona Rolfes - 43rd Eu­ropean Micro­wa­ve Con­fe­rence (EuMC), pp. 1075-1078, Nu­rem­berg, Ger­ma­ny, Oct 6-10, 2013

Evaluation of radio channel LOS/NLOS transitions in indoor and outdoor fading measurements

Jan Barowski, Sven Dortmund, Bastian Meiners, Artur Nalobin, Sebastian Sczyslo, Ilona Rolfes - 43rd Eu­ropean Micro­wa­ve Con­fe­rence (EuMC), pp. 1079-1082, Nu­rem­berg, Ger­ma­ny, Oct 6-10, 2013

Reflection based Measurement Method for the Reconstruction of the Transmission Properties applied on Free Space Material Characterization

Marc Zimmermanns, Bianca Will, Ilona Rolfes - 35th Annual Meeting and Symposium of Antenna Measurement Techniques Association (AMTA), Columbus, Ohio, Oct 6-11, 2013

A Measurement System for Soil Moisture Characterizations based on Time Domain Transmission

Bianca Will, Michael Gerding, Christian Schulz, Christoph Baer, Thomas Musch, Ilona Rolfes - 10th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA 2013), Weimar, Germany, Sep 25-27, 2013

A Polarimetric Measurement Concept for the Permittivity Determination of Mixed Dielectric Materials Using a Monostatic Antenna-Reflector System

Christoph Baer, Christian Schulz, Bianca Will, Ilona Rolfes, Thomas Musch - 10th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA 2013), Weimar, Germany, Sep 25-27, 2013.

Algorithmus zur Interpolation von Kanalimpulsantworten mit Hilfe stochastischer Prozesse

Bastian Meiners, Sven Dortmund, Sebastian Sczyslo, Jan Barowski, Artur Nalobin, Ilona Rolfes - Kleinheubacher Tagung 2013, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 23-25, 2013

Analyse eines verteilten spectrum-sensing Systems für kognitive Funksysteme

Jan Barowski, Sven Dortmund, Bastian Meiners, Artur Nalobin, Sebastian Sczyslo, Ilona Rolfes - Kleinheubacher Tagung 2013, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 23-25, 2013

Differenzierung von Large- und Small-Scale-Gebieten von Indoor-Fadingkanälen mittels Fourier-Analyse

Artur Nalobin, Sven Dortmund, Jan Barowski, Bastian Meiners, Sebastian Sczyslo, Ilona Rolfes - Kleinheubacher Tagung 2013, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 23-25, 2013

Entwicklung einer dielektrischen Antenne zur Strahlschwenkung mit kongruenten Richtcharakteristiken

Christoph Dahl, Christian Schulz, Christoph Baer, Thomas Musch, Bianca Will, Ilona Rolfes - Kleinheubacher Tagung 2013, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 23-25, 2013

Simulative Untersuchung der Wechselwirkung hochfrequenter Sonden in technischen Plasmen

Christian Schulz, Ilona Rolfes - Kleinheubacher Tagung 2013, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 23-25, 2013

Synthetische Kalibrierstandards für die Reflektometerkalibrierung

Marc Zimmermanns, Bianca Will, Ilona Rolfes - Kleinheubacher Tagung 2013, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 23-25, 2013

A Monostatic Antenna-Reflector System for Ultra-Short-Range Radar Applications

Christoph Baer, Christian Schulz, Bianca Will, Ilona Rolfes, Thomas Musch - Antennas and Propagation Society International Symposium (APSURSI),pp. 956-957, DOI: 10.1109/APS.2013.6711137, Orlando, Florida, USA, July 7-13, 2013

A Synthetic Calibration Technique for Broadband Applications Using Focusing Antenna Setups

Bianca Will, Ilona Rolfes - Antennas and Propagation Society International Symposium (APSURSI), pp. 722-723, DOI: 10.1109/APS.2013.6711020, Orlando, Florida, USA, July 7-13, 2013

Conceptual Design of a Dielectric Hemispherical Lens Antenna with a Congruent Radiation Pattern for Beam Steering Applications

Christoph Dahl, Christian Schulz, Christoph Baer, Thomas Musch, Bianca Will, Ilona Rolfes - Antennas and Propagation Society International Symposium (APSURSI), pp. 1296 - 1297, DOI: 10.1109/APS.2013.6711308, Orlando, Florida, USA, July 7-13, 2013

Detection of programme making and special event devices in indoor channels

Artur Nalobin, Sven Dortmund, Ilona Rolfes - An­ten­nas and Pro­pa­ga­ti­on So­cie­ty In­ter­na­tio­nal Sym­po­si­um (AP­SUR­SI), pp. 1958-1959, Or­lan­do, Flo­ri­da, USA, July 7-13, 2013

Investigation of Interactions between Plasmas and RF-Diagnostics: Challenges of Complex 3D-Electromagnetic Field Simulations

Christian Schulz, Ilona Rolfes - Antennas and Propagation Society International Symposium (APSURSI), pp. 2181-2182, DOI: 10.1109/APS.2013.6711749, Orlando, Florida, USA, July 7-13, 2013

Interpolation of Channel Impulse Responses Combining the Brownian Bridge with a Modified Birth and Death Process

Bastian Meiners, Sven Dortmund, Sebastian Sczyslo, Ilona Rolfes - 7th European Conference on Antennas and Propagation (EuCAP), pp. 1019-1023, Gothenburg, Sweden, April 8-12, 2013

Nonlinear Modeling of PMSE Receiver Frontends Using Volterra Series

Jan Barowski, Sven Dortmund, Sebastian Sczyslo, Ilona Rolfes - 7th European Conference on Antennas and Propagation (EuCAP), pp. 3583-3587, Gothenburg, Sweden, April 8-12, 2013

Compact Unfocused Antenna Setup for X-Band Free-Space Dielectric Measurements based on Line-Network-Network Calibration Method

Christian Orlob, Tobias Reinecke, Eckhard Denicke, Bernd Geck, Ilona Rolfes - IEEE Transactions on Instrumentation and Measurement, Vol. 62, Issue 7, pp. 1982-1989, July 2013

A Multi Directional Dielectric Lens Approach for Antennas Used in Industrial RADAR Applications

Christian Schulz, Christoph Baer, Nils Pohl, Thomas Musch, Bianca Will, Ilona Rolfes - International Workshop on Antenna Technology (iWAT), pp. 328-331, Karlsruhe, Germany, March 4-6, 2013

2012
A Multistatic Feeding Concept for Beam Steering Based on a Dielectric Ellipsoidal Antenna

Christian Schulz, Christoph Baer, Nils Pohl, Thomas Musch, Ilona Rolfes - 26th Asia Pa­ci­fic Micro­wa­ve Con­fe­rence (APMC 2012), pp. 286-288, Kaoh­si­ung, Tai­wan, Dez 5-8, 2012

A Planar Orthomode Transducer for Broadband Applications at 25 GHz using a Stepped Waveguide Technique

Christoph Baer, Christian Schulz, Bianca Will, Ilona Rolfes, Thomas Musch - 26th Asia Pacific Microwave Conference (APMC 2012), Kaohsiung, Taiwan, Dez 5-8, 2012

Dielectric Tube Antennas for Industrial Radar Level Gauging

Gunnar Armbrecht, Christian Zietz, Eckhard Denicke, Ilona Rolfes - IEEE Transactions on Antennas and Propagation, Vol. 60, No. 11, pp. 5083-5091, Nov 2012

Modeling Small Scale Fading for Cognitive Programme Making and Special Event Applications

Sven Dortmund, Sebastian Sczyslo, Ilona Rolfes - 42nd European Microwave Week (EuMW), pp. 877-879, Amsterdam, The Netherlands, Oct 28 - Nov 2, 2012

Reducing antennas' influence on wideband indoor channel characterization in the UHF range by means of a Wiener-Filter

Sebastian Sczyslo, Sven Dortmund, Ilona Rolfes - 42nd European Microwave Week (EuMW),pp. 148-151, Amsterdam, The Netherlands, Oct 28 - Nov 2, 2012

The Multipole Resonance Probe: Investigation of an Active Plasma Resonance Probe Using 3D-electromagnetic Field Simulations

Christian Schulz, Tim Styrnoll, Martin Lapke, Jens Oberrath, Robert Storch, Peter Awakowicz, Ralf Peter Brinkmann, Thomas Musch, Thomas Mussenbrock, Ilona Rolfes - 42nd European Microwave Week, pp. 566-569 Amsterdam, The Netherlands, Oct 28 – Nov 2, 2012

The Multiple Resonance Probe: A Novel Device for Industry Compatible Plasma Diagnostics

Ralf Peter Brinkmann, Robert Storch, Martin Lapke, Jens Oberrath, Christian Schulz, Tim Styrnoll, Christian Zietz, Peter Awakowicz, Thomas Musch, Thomas Mussenbrock, Ilona Rolfes - 65th Annual Gaseous Electronics Conference 2012 , Vol. 57, No. 8 , Austin, Texas, USA, Oct 22–26, 2012

Characterization of Dielectric Deposition Processes Using Active Plasma Resonance Spectroscopy

Christian Schulz, Tim Styrnoll, Martin Lapke, Jens Oberrath, Robert Storch, Peter Awakowicz, Ralf Peter Brinkmann, Thomas Musch, Thomas Mussenbrock, Ilona Rolfes - Kleinheubacher Tagung 2012, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 24-26, 2012

Modellierung der Pfadanzahl in Kanalimpulsantworten bei applikativen Positionsänderungen der drahtlosen Audioübertragung mittels Brownscher Brücke

Bastian Meiners, Sven Dortmund, Sebastian Sczyslo, Ilona Rolfes - Kleinheubacher Tagung 2012, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 24-26, 2012

Untersuchung des Interferenzverhaltens innerhalb des analogen Empfangszweiges von frequenzagilen PMSE Geräten im UHF Bereich

Jan Barowski, Sven Dortmund, Sebastian Sczyslo, Ilona Rolfes - Kleinheubacher Tagung 2012, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 24-26, 2012

Untersuchung zur Verwendung von hochauflösenden Winkelschätzalgorithmen unter Berücksichtigung realistischer Antennenstrahler im Nahfeld

Artur Nalobin, Sebastian Sczyslo, Sven Dortmund, Ilona Rolfes - Kleinheubacher Tagung 2012, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 24-26, 2012

A Novel Radio-Frequency Plasma Probe for Monitoring Systems in Dielectric Deposition Processes

Christian Schulz, Tim Styrnoll, Martin Lapke, Jens Oberrath, Robert Storch, Peter Awakowicz, Ralf Peter Brinkmann, Thomas Musch, Thomas Mussenbrock, Ilona Rolfes - International Conference on Electromagnetics in Advanced Applications (ICEAA '12), pp. 728-731, DOI: 10.1109/ICEAA.2012.6328725, Cape Town, South Africa, Sep 2-7, 2012

On the fidelity of ultra-wideband antennas

Sebastian Sczyslo, Ilona Rolfes, Thomas Kaiser - Topical Conference on Antennas and Propagation in Wireless Communications (IEEE APWC '12), pp. 1110-1113, DOI: 10.1109/APWC.2012.6324990, Cape Town, South Af­ri­ca, Sep 2-7, 2012

Determination of the delay spread of an indoor channel measurement campaign in the UHF band

Sebastian Sczyslo, Sven Dortmund, Ilona Rolfes - Antennas and Propagation Society International Symposium (APSURSI), pp. 1-2, DOI: 10.1109/APS.2012.6348846, Chicago, Illinois, USA, July 8-14, 2012

Distance-dependent enhancement of a measurement based channel model for large concert halls

Sven Dortmund, Sebastian Sczyslo, Ilona Rolfes - Antennas and Propagation Society International Symposium (APSURSI), DOI: 10.1109/APS.2012.6348005, pp. 1-2, Chicago, Illinois, USA, July 8-14, 2012

A time domain transmission measurement system for dielectric characterizations

Bianca Will, Michael Gerding, Christian Schulz, Christoph Baer, Thomas Musch, Ilona Rolfes - International Journal of Microwave and Wireless Technologies, Vol. 4, Issue 3, pp. 349-355, June 2012

Konzept zur multistatischen Strahlschwenkung einer dielektrischen ellipsoidalen Antenne für industrielle Radaranwendungen bei 24 GHz

Christian Schulz, Christoph Baer, Nils Pohl, Thomas Musch, Ilona Rolfes - VDE-ITG Diskussionssitzung 'Radartechniken', Bochum, Germa­ny, May 31, 2012

Prozesstaugliche Plasmadiagnostik auf Basis der Multipol-Resonanz-Sonde

Jens Oberrath, Christian Schulz, Robert Storch, Tim Styrnoll, Martin Lapke, Thomas Mussenbrock, Peter Awakowicz, Ralf Peter Brinkmann, Thomas Musch, Ilona Rolfes - 16. GMA/ITG-Fachtagung Sensoren und Messsysteme 2012, Nürnberg, 22.-23. Mai (Proceedings: ISBN 978-3-9813484-0-8)

Tri-Mode Horn Antenna for Directive 3D-Imaging

Hanno Rabe, Aline Friedrich , Ilona Rolfes - 9th European Conference on Synthetic Aperture Radar (EuSAR 2012), pp.348 - 351, Nuremberg, Germany, April 23-26, 2012

Application of the thru-network-line self-calibration method for free space material characterizations

Bianca Will, Ilona Rolfes - International Conference on Electromagnetics in Advanced Applications (ICEAA), pp. 831-834, DOI: 10.1109/ICEAA.2012.6328749, Cape Town, South Africa, Sep 2-7, 2012

9 GHz Wideband CMOS RX and TX Front-ends for Universal Radio Applications

Sven Karsten Hampel, Oliver Schmitz, Marc Tiebout, Koen Mertens, Ilona Rolfes - IEEE Transactions on Microwave Theory and Techniques, Vol. 60, No. 4, pp. 1105 - 1116, April 2012

A New Approach on Broadband Calibration Methods for Free Space Applications

Bianca Will, Ilona Rolfes - Proceedings of IEEE MTT-S International Microwave Symposium Digest (IMS2012), pp. 1-3, Montréal, Canada, June 17-22, 2012

Device and use of the device for measuring the density and/or the electron temperature and/or the collision frequency of a plasma

Ralf Peter Brinkmann, Jens Oberrath, Peter Awakowicz, Martin Lapke, Thomas Musch, Thomas Mussenbrock, Ilona Rolfes, Christian Schulz, Robert Storch, Tim Styrnoll, Christian Zietz - PCT/DE2011/001802, R. P. Brinkmann, J. Oberrath, P. Awakowicz, M. Lapke, T. Musch, T. Mussenbrock, I. Rolfes, C. Schulz, R. Storch, T. Styrnoll, C. Zietz (Erfinder), Ruhr-Universität Bochum (Anmelder), Offenlegung 12.04.2012

Konzept zur simulatorischen Koexistenzanalyse kognitiver Übertragungssysteme mit Schwerpunkt C-PMSE unter Berücksichtigung realer Ausbreitungsbedingungen

Artur Nalobin, Sven Dortmund, Sebastian Sczyslo, Ilona Rolfes - Radar, Communication and Measurement (RADCOM 2012), Hamburg, Germany, March 27-28, 2012

Prozessüberwachung und Kontrolle mit der Multipol-Resonanz-Sonde

Ralf Peter Brinkmann, Martin Lapke, Jens Oberrath, Christian Schulz, Robert Storch, Tim Styrnoll, Peter Awakowicz, Thomas Mussenbrock, Thomas Musch, Ilona Rolfes, Christian Zietz - DPG Früh­jahrs­ta­gung 2012, Stutt­gart, Ger­ma­ny, March 12-16

2011
A Broadband Circular Waveguide-to-Microstrip Transition for an 80 GHz FMCW Radar System

Christian Schulz, Nils Pohl, Ilona Rolfes - 25th Asia Pacific Microwave Conference (APMC 2011), pp. 391-394, Melbourne, Australia, Dec 5-8, 2011

The TTN-Method - A Phase Shift Calibration Technique for Vector Network Analyzers

Bianca Will, Ilona Rolfes - 25th Asia Pacific Microwave Conference (APMC 2011), Melbourne, Australia, Dec 5-8, 2011

Process Diagnostics and Monitoring Using the Multipole Resonance Probe (MRP)

Jens Harhausen, Peter Awakowicz, Ralf Peter Brinkmann, Rüdiger Foest, Martin Lapke, Thomas Musch, Thomas Mussenbrock, Jens Oberrath, Andreas Ohl, Ilona Rolfes, Christian Schulz, Robert Storch, Tim Styrnoll - 64th Annual Gaseous Electronics Conference 2011, Salt Lake City, Utah, USA, Nov 14-18, 2011

A Broadband Stacked Patch Antenna with Enhanced Antenna Gain by an Optimized Ellipsoidal Reflector for X-band Applications

Christian Schulz, Christoph Baer, Thomas Musch, Ilona Rolfes - 3rd International IEEE Conference on Microwaves, Communications, Antennas and Electronic Systems (IEEE COMCAS 2011), Tel-Aviv, Israel, Nov 7-9, 2011

A Monopulse Imaging Concept for Reliable Radar Level Measurements

Hanno Rabe, Aline Friedrich, Eckhard Denicke, Ilona Rolfes - 8th European Radar Conference (EuRAD 2011), pp. 269 - 272, Manchester, United Kingdom, Oct 12-14, 2011

Antenna Impact on the Gauging Accuracy of Industrial Radar Level Measurements

Gunnar Armbrecht, Christian Zietz, Eckhard Denicke, Ilona Rolfes - IEEE Transactions on Microwave Theory and Techniques, Vol. 59, No. 10, pp. 2554-2562, October 2011

Determination of soil moisture based on an improved sensor design using time domain transmission measurements

Bianca Will, Michael Gerding, Thomas Musch, Ilona Rolfes - 41st European Microwave Conference (EuMC), pp. 218 - 221, Manchester, United Kingdom, Oct 10-13, 2011

A Time Domain Transmission Probe for the Dielectric Characterization of Water-Solid-Mixtures

Bianca Will, Michael Gerding, Thomas Musch, Ilona Rolfes - Kleinheubacher Tagung 2011, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 26-28, 2011

Active Plasma Resonance Spectroscopy Using The Multipole Resonance Probe

Christian Schulz, Martin Lapke, Jens Oberrath, Robert Storch, Tim Styrnoll, Peter Awakowicz, Ralf Peter Brinkmann, Thomas Musch, Thomas Mussenbrock, Ilona Rolfes - Kleinheubacher Tagung 2011, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 26-28, 2011

Plasma and optical thin film technologies

O. Stenzel, S. Wilbrandt, N. Kaiser, C. Schmitz, M. Turowski, D. Ristau, Peter Awakowicz, Ralf Peter Brinkmann, Thomas Musch, Ilona Rolfes, H.Steffen, R. Foest, A. Ohl, T. Köhler, G. Dolgonos, T. Frauenheim - Proceedings of the The International Society for Optical Engineering (SPIE), Vol. 8168L (October 04, 2011), pp. 10, DOI: 10.1117/12.895323, Marseille, France, Sep 05, 2011

Usage of electromagnetic modeling of the multipole resonance probe

Martin Lapke, Christian Schulz, Jens Oberrath, Robert Storch, Tim Styrnoll, Peter Awakowicz, Ralf Peter Brinkmann, Thomas Musch, Thomas Mussenbrock, Ilona Rolfes - Proceedings of the 30th International Conference on Phenomena in Ionized Gases (ICPIG), Belfast, Northern Ireland, Aug 28 - Sep 2, 2011

An Improved Probe Design for Soil Moisture Measurements Using Time Domain Transmission Methods

Bianca Will, Michael Gerding, Thomas Musch, Ilona Rolfes - 9th In­ter­na­tio­nal Con­fe­rence on Elec­tro­ma­gne­tic Wave In­ter­ac­tion with Water and Moist Sub­stan­ces (ISEMA 2011), Kansas City, Missouri, USA, May 31 - June 3, 2011

The Multipole Resonance Probe: Characterization of a Prototype

Martin Lapke, Jens Oberrath, Christian Schulz, Robert Storch, Tim Styrnoll, Peter Awakowicz, Ralf Peter Brinkmann, Thomas Mussenbrock, Thomas Musch, Ilona Rolfes, Christian Zietz - Plasma Sources Science and Technology, Vol. 20, No. 4, 042001, 2011

On the Impact of Arbitrary Nozzle or Dome Configurations on Dielectric Endfire Antenna Performance in Industrial Radar Level Gauging

Christian Zietz, Gunnar Armbrecht, Eckhard Denicke, Ilona Rolfes - 5th European Conference on Antennas and Propagation (EuCAP 2011), pp. 61-65, Rome, Italy, April 11-15, 2011

Koexistenzanalyseansatz für kognitive 'Programme Making and Special Event' Applikationen unter Berücksichtigung realer Ausbreitungsbedingungen

Sven Dortmund, Sebastian Sczyslo, Ilona Rolfes - Radar, Communication and Measurement (RADCOM 2011), Hamburg, Germany, April 6-7, 2011

Konzept zur hybriden Kanalmodellierung kognitiver 'Programme Making and Special Event' Applikationen

Sebastian Sczyslo, Sven Dortmund, Ilona Rolfes - Radar, Communication and Measurement (RADCOM 2011), Hamburg, Germany, April 6-7, 2011

Simultane Bestimmung von Elektronendichte und Temperatur mit der Multipolresonanzsonde in technischen Plasmen

Martin Lapke, Tim Styrnoll, Jens Oberrath, Christian Schulz, Robert Storch, Ralf Peter Brinkmann, Peter Awakowicz, Thomas Musch, Thomas Mussenbrock, Ilona Rolfes - DPG Früh­jahrs­ta­gung 2011, Kiel, Germany, March 28-31, 2011

Bestimmung von Elektronendichte und Temperatur mit der Multipol-Resonaz-Sonde in Technologischen Plasmen

Tim Styrnoll, Martin Lapke, Jens Oberrath, Christian Schulz, Robert Storch, Peter Awakowicz, Ralf Peter Brinkmann, Thomas Musch, Thomas Mussenbrock, Ilona Rolfes - PT 15, Stuttgart, Ger­ma­ny, Feb 28 - March 02, 2011

Funktionalanalytische Beschreibung der Multipol-Resonanz-Sonde

Jens Oberrath, Martin Lapke, Thomas Mussenbrock, Ralf Peter Brinkmann, Christian Schulz, Ilona Rolfes, Thomas Musch, Tim Styrnoll, Peter Awakowicz - PT 15, Stuttgart, Ger­ma­ny, Feb 28 - March 02, 2011

Differential Amplifier Characterization Using Mixed-Mode Scattering Parameters Obtained from True and Virtual Differential Measurements

Oliver Schmitz, Sven Karsten Hampel, Hanno Rabe, T. Reinecke, Ilona Rolfes - IEEE Transactions on Microwave Theory and Techniques, Vol. 59, No. 1, pp. 132-142, January 2011

2010
The Multipole Resonance Probe

Jens Oberrath, Martin Lapke, Christian Schulz, Robert Storch, Tim Styrnoll, Christian Zietz, Peter Awakowicz, Ralf Peter Brinkmann, Thomas Musch, Thomas Mussenbrock, Ilona Rolfes - Section Days Research School, Nov 03-05, 2010

Load Modulation for Efficiency Enhancement of Inverse Class-D Power Amplifiers

M. Gamal El Din, Bernd Geck, Ilona Rolfes, Hermann Eul - 1st Middle East Conference on Antennas and Propagation (MECAP 2010), Cairo, Egypt, Oct 20-22, 2010

The multipole resonance probe: Realization of an optimized radio-frequency plasma probe based on active plasma resonance spectroscopy

Christian Schulz, Martin Lapke, Jens Oberrath, Robert Storch, Tim Styrnoll, Christian Zietz, Peter Awakowicz, Ralf Peter Brinkmann, Thomas Musch, Thomas Mussenbrock, Ilona Rolfes - 1st Middle East Conference on Antennas and Propagation (MECAP 2010), pp. 1-5, DOI: 10.1109/MECAP.2010.5724175, Cairo, Egypt, Oct 20-22, 2010

Electron density measurements in technological plasmas using the Multipole Resonance Probe

Tim Styrnoll, Martin Lapke, Christian Schulz, Robert Storch, Jens Oberrath, Thomas Musch, Ilona Rolfes, Peter Awakowicz, Thomas Mussenbrock, Ralf Peter Brinkmann - 63rd Annual Ga­se­ous Elec­tro­nics Con­fe­rence 2010, Paris, Fran­ce, Oc­to­ber 4-8, 2010

Radio-Frequency Plasma Diagnostics with the Multipole Resonance Probe

Christian Schulz, Martin Lapke, Jens Oberrath, Robert Storch, Tim Styrnoll, Christian Zietz, Peter Awakowicz, Ralf Peter Brinkmann, Thomas Musch, Thomas Mussenbrock, Ilona Rolfes - Kleinheubacher Tagung 2010, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Oct 4-6, 2010

Minimal Area 65nm CMOS Amplifier for Ultra-Wideband Transmitter Applications

Oliver Schmitz, Sven Karsten Hampel, Koen Mertens, Marc Tiebout, Ilona Rolfes - IEEE International Conference on Ultra-Wideband (ICUWB 2010), Vol. 1, pp. 1-4, Nanjing, China, Sep 20-23, 2010

Präzise Radarfüllstandsmessungen in Schwallrohren

Eckhard Denicke, Gunnar Armbrecht, Ilona Rolfes - tm - Technisches Messen, Wissenschaftsverlag, Vol. 77, No. 7-8, pp. 381-393, Aug 2010

Measurement Based Channel Model for Large Concert Halls

Sven Dortmund, Axel Schmidt, Ilona Rolfes - IEEE International Symposium on Antennas and Propagation (AP-S 2010), Toronto, Canada, July 11-17, 2010

Radar Distance Measurements in Circular Waveguides Involving Intermodal Dispersion Effects

Eckhard Denicke, Gunnar Armbrecht, Ilona Rolfes - International Journal of Microwave and Wireless Technologies, Special Issue on European Microwave Week 2009, Vol. 2, June 2010

An Imaging Radar Concept for Reliable Level Gauging

Hanno Rabe, Eckhard Denicke, Christian Zietz, Gunnar Armbrecht, Ilona Rolfes - 8th European Conference on Synthetic Aperture Radar (EUSAR 2010), Aachen, Germany, June 7-10, 2010

A novel inverse class-D output matching network and its application to dynamic load modulation

M. Gamal El Din, Bernd Geck, Ilona Rolfes, Hermann Eul - 2010 IEEE MTT-S International Microwave Symposium Digest (MTT), pp. 332-335, Anaheim, California, May 23-28, 2010

Effects of Antenna Characteristics and Placements on a Vehicle-to-Vehicle Channel Scenario

Daniel Kornek, Moritz Schack, Eric Slottke, Oliver Klemp, Ilona Rolfes, Thomas Kürner - IEEE International Conference on Communications (ICC 2010), Workshop on Vehicular Connectivity, pp. 1-5, Cape Town, South Africa, May 23-27, 2010

Inductorless Low-Voltage and Low-Power Wideband Mixer for Multistandard Receivers

Sven Karsten Hampel, Oliver Schmitz, Marc Tiebout, Ilona Rolfes - IEEE Transactions on Microwave Theory and Techniques, Vol. 58, No. 5, pp. 1384-1390, May 2010

A Compact Ultra-Wideband Double Balun Feeding Network on a Single Layer PCB

Christian Zietz, Gunnar Armbrecht, Ilona Rolfes - 4th European Conference on Antennas and Propagation (EuCAP 2010), Barcelona, Spain, April 12-16, 2010

A Multistatic Radar Concept for Increased Robustness in Level Measurements

Hanno Rabe, Eckhard Denicke, Christian Zietz, Gunnar Armbrecht, Ilona Rolfes - 4th European Conference on Antennas and Propagation (EuCAP 2010), Barcelona, Spain, April 12-16, 2010

Experimental Investigation of Bent Patch Antennas on MID Substrate

Daniel Kornek, Eric Slottke, Christian Orlob, Ilona Rolfes - 4th European Conference on Antennas and Propagation (EuCAP 2010), Barcelona, Spain, April 12-16, 2010

Influence of Finite High-Impedance Surface Dimensions on the Characteristics of a Planar Printed Dipole

Sven Karsten Hampel, Isabell Kiral, Oliver Schmitz, Ilona Rolfes - 4th European Conference on Antennas and Propagation (EuCAP 2010), pp. 1-4, Barcelona, Spain, April 12-16, 2010

Efficiency enhancement of class-F GaN power amplifiers using load modulation

M. Gamal El Din, S. Mohammadifard, Bernd Geck, Ilona Rolfes - German Microwave Conference (GeMiC 2010), pp. 114-117, Berlin, Germany, March 15-17, 2010

Prozesstaugliche Plasmadiagnostik mit der Multipolresonanzsonde

Ralf Peter Brinkmann, Peter Awakowicz, Martin Lapke, Thomas Musch, Jens Oberrath, Ilona Rolfes, Robert Storch, Tim Styrnoll, Thomas Zelder, Christian Zietz - Symposium Plasmatechnik für die Optikherstellung (SYPT), DPG Frühjahrstagung, oral contribution, Hannover, Germany, March 8-12, 2010

2009
Body effect up- and down-conversion mixer circuits for low-voltage ultra-wideband operation

Oliver Schmitz, Sven Karsten Hampel, Christian Orlob, Marc Tiebout, Ilona Rolfes - Analog Integrated Circuits and Signal Processing, Springer Netherlands, DOI: 10.1007/s10470-009-9426-3

Inductorless 1-10.5 GHz Wideband LNA for Multistandard Applications

Sven Karsten Hampel, Oliver Schmitz, Marc Tiebout, Ilona Rolfes - 5th Asian Solid-State Circuits Conference (A-SSCC 2009), pp. 269-272, Taipei, Taiwan, Nov 16-18, 2009

Accurate radar distance measurements in dispersive circular waveguides considering multimode propagation effects

Eckhard Denicke, Gunnar Armbrecht, Ilona Rolfes - 31st Annual AMTA Symposium (AMTA 2009), Student Paper Award (3rd place), Salt Lake City, Utah, Nov 1-6, 2009

Determination of Complex Permittivity of Molded Interconnect Device Materials at Microwave Frequencies

Christian Orlob, Daniel Kornek, Ilona Rolfes - 31st Annual AMTA Symposium, Utah, Salt Lake City, Nov 1-6, 2009

A Correlation-Based Method for Precise Radar Distance Measurements in Dispersive Waveguides

Eckhard Denicke, Gunnar Armbrecht, Ilona Rolfes - 6th European Radar Conference (EuRAD 2009), pp. 302-305, Rome, Italy, Sep 30 - Oct 2, 2009

A Flexible System Simulator for Antenna Performance Evaluation of Radar Level Measurements

Gunnar Armbrecht, Christian Zietz, Eckhard Denicke, Ilona Rolfes - 6th European Radar Conference (EuRAD 2009), pp. 513-516, Rome, Italy, Sep 30 - Oct 2, 2009

Ein multistatisches Radarkonzept für die robuste Messung von Füllständen

Hanno Rabe, Eckhard Denicke, Ilona Rolfes - Kleinheubacher Tagung 2009, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 28 - Oct 1, 2009

Systematische Untersuchungen zum Einfluss von Antennenparametern auf die Genauigkeit in der industriellen Radarfüllstandsmesstechnik

Christian Zietz, Gunnar Armbrecht, Eckhard Denicke, Ilona Rolfes - Kleinheubacher Tagung 2009, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 28 - Oct 1, 2009

Channel Measurement and Modelling for Body-Worn Professional Wireless Microphone Systems

Sven Dortmund, Daniel Voss, Ilona Rolfes - 2nd European Wireless Technology Conference (EuWiT 2009), pp. 180-183, Rome, Italy, Sep 28-29, 2009

On the Validity of Single-Ended Mixed-Mode S-Parameter Measurements for Differential Active Devices

Oliver Schmitz, Sven Karsten Hampel, Hanno Rabe, J. Simon, Ilona Rolfes - 39th European Microwave Conference (EuMC 2009), pp. 691-694 , Rome, Italy, Sep 29 - Oct 1, 2009

A Highly Linear, Differential Gyrator in 65nm CMOS for Reconfigurable GHz Applications

Oliver Schmitz, Sven Karsten Hampel, Koen Mertens, Marc Tiebout, Ilona Rolfes - 35th European Solid-State Circuits Conference (ESSCIRC 2009), pp. 124-127, Athens, Greece, Sep 14-18, 2009

Wideband Inductorless Minimal Area RF Front-End

Sven Karsten Hampel, Oliver Schmitz, Marc Tiebout, Ilona Rolfes - 35th European Solid-State Circuits Conference (ESSCIRC 2009), pp. 96-99, Athens, Greece, Sep 14-18, 2009

Advances in Industrial Radar Level Measurements

Gunnar Armbrecht, Eckhard Denicke, Christian Zietz, Nils Pohl, Thomas Musch, Ilona Rolfes - Electrical and Electronic Engineering for Communication (EEEfCOM 2009), Ulm, Germany, June 24-25, 2009

Low-Voltage, Inductorless Folded Down-Conversion Mixer in 65nm CMOS for UWB Applications

Sven Karsten Hampel, Oliver Schmitz, Marc Tiebout, Ilona Rolfes - Radio Frequency Integrated Circuits Symposium (RFIC 2009)in conjunction with the International Microwave Symposium, pp. 119-122, Boston, Massachusetts, June 7-9, 2009

A Sierpinski Shaped Patch Antenna for Beam Switching

Daniel Kornek, Christian Orlob, Ilona Rolfes - Antennas and Propagation Society International Symposium, 2009. (APSURSI '09), pp. 1-4, Charleston, South Carolina, June 1-5, 2009

Comparison of methods for broadband electromagnetic characterization of Molded Interconnect Device materials

Christian Orlob, Daniel Kornek, Stephan Preihs, Ilona Rolfes - Advances in Radio Science, DOI: 10.5194/ars-7-11-2009, Vol. 7, pp. 11-15, May 2009.

Considerations on radar localization in multi-target environments

Hanno Rabe, Eckhard Denicke, Gunnar Armbrecht, Thomas Musch, Ilona Rolfes - Advances in Radio Science, DOI: 10.5194/ars-7-5-2009 Vol. 7, 2009, pp. 5-10, May 2009

Dielectric Travelling Wave Antennas Incorporating Cylindrical Inserts with Tapered Cavities

Gunnar Armbrecht, Eckhard Denicke, Nils Pohl, Thomas Musch, Ilona Rolfes - 3rd European Conference on Antennas and Propagation (EuCAP 2009), pp. 3090-3094, Berlin, Germany, March 23-27, 2009

Reconfigurable Triangular Patch Antenna for Pattern Diversity

Daniel Kornek, Johannes Meyer, Christian Orlob, Ilona Rolfes - 3rd European Conference on Antennas and Propagation (EuCAP 2009), pp. 3744-3747, Berlin, Germany, March 23-27, 2009

Characterization of Electromagnetic Properties of Molded Interconnect Device Materials

Christian Orlob, Daniel Kornek, Stephan Preihs, Ilona Rolfes - German Microwave Conference 2009 (GeMiC 2009), Munich, pp. 1-4, Germany, March 16-18, 2009

Hybrid Eigenmode Analysis of Dielectric Waveguides for the Design of Travelling Wave Endfire Antennas

Gunnar Armbrecht, Christian Zietz, Eckhard Denicke, Ilona Rolfes - 4th CST European User Group Meeting, Darmstadt, Germany, March 16-18, 2009

Stochastical Frequency List Generation for Inter-Intermodulation Free Allocation of Professional Wireless Microphone Systems

Sven Dortmund, Ilona Rolfes - German Microwave Conference 2009 (GeMiC 2009), pp. 1-3, Munich, Germany, March 16-18, 2009

Performance of Printed Dipoles on Dualband High-Impedance Surface

Daniel Kornek, Sven Karsten Hampel, Isabell Kiral, Ilona Rolfes - International ITG Workshop on Smart Antennas (WSA 2009), Berlin, Germany, Feb 16-18, 2009

Schutzrecht - Zweifach-Reflexions-Verfahren zur Bestimmung der Streuparameter von Mehrtoren durch Zweitormessungen

Bianca Will, Ilona Rolfes, Burkhard Schiek - Patentnummer DE102007036730A1, Veröffentlichung der Erteilung Februar 2009

Contactless vector network analysis – A new approach for S-Parameter measurements

Thomas Zelder, B. Rosenberger, Bernd Geck, Ilona Rolfes - DesignCon, Santa Clara, California, 2009

2008
A tunable directional coupler

Thomas Zelder, Bernd Geck, Ilona Rolfes, Hermann Eul - Proceedings of the European Microwave Association, Vol. 4, pp. 66-72, Dec 2008

Low-Voltage Bulk-Driven Mixers in 45nm CMOS for Ultra-Wideband TX and RX

Oliver Schmitz, Sven Karsten Hampel, Christian Orlob, Marc Tiebout, Ilona Rolfes - 26th Norchip Conference, pp. 119-122, Tallinn, Estonia, Nov 17-18, 2008

Design and Application of Broadband Antennas and High Impedance Surfaces

Sven Karsten Hampel, Isabell Kiral, Oliver Schmitz, Gunnar Armbrecht, Ilona Rolfes - ANSOFT Inspiring Engineering Workshop 2008, Munich, Germany, Nov 10, 2008

Contactless Vector Network Analysis with Printed Loop Couplers

Thomas Zelder, Bernd Geck, Michael Wollitzer, Ilona Rolfes, Hermann Eul - IEEE Transactions on Microwave Theory and Techniques, Vol. 56, No. 11, Part 2, pp. 2628-2634, Nov 2008

Obstacle Based Concept for Compact Mode-Preserving Waveguide Transitions for High-Precision Radar Level Measurements

Gunnar Armbrecht, Eckhard Denicke, Nils Pohl, Thomas Musch, Ilona Rolfes - 38th European Microwave Conference (EuMC), pp. 472-475 , Amsterdam, The Netherlands, Oct 28-30, 2008

MIMO Performance of a Dual Polarized Antenna in a LOS Channel

Hanno Rabe, Ilona Rolfes - 1st European Wireless Technology Conference (EuWiT 2008), pp. 318-321, Amsterdam, Netherlands, Oct 27-28, 2008

MIMO and Diversity Performance of a Planar 2x2 Dipole Array Applying Sievenpiper HIS

Sven Karsten Hampel, Oliver Schmitz, Ilona Rolfes - 1st European Wireless Technology Conference (EuWiT 2008), pp. 326-329, Amsterdam, Netherlands, Oct 27-28, 2008

Comparison of Methods for Permittivity Measurements

Christian Orlob, Stephan Preihs, Daniel Kornek, Ilona Rolfes - Kleinheubacher Tagung 2008, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 22-25, 2008

Considerations on radar localization in multi-target environments

Hanno Rabe, Eckhard Denicke, Gunnar Armbrecht, Thomas Musch, Ilona Rolfes - Kleinheubacher Tagung 2008, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 22-25, 2008

Dielectric antenna design and its impact on radar distance measurement accuracy

Eckhard Denicke, Gunnar Armbrecht, Hanno Rabe, Nils Pohl, Thomas Musch, Ilona Rolfes - Kleinheubacher Tagung 2008, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 22-25, 2008

On precise radar distance measurements in overmoded circular waveguides

Eckhard Denicke, Gunnar Armbrecht, Hanno Rabe, Thomas Musch, Ilona Rolfes - Kleinheubacher Tagung 2008, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 22-25, 2008

Compact Directional UWB Antenna with Dielectric Insert for Radar Distance Measurements

Gunnar Armbrecht, Eckhard Denicke, Nils Pohl, Thomas Musch, Ilona Rolfes - IEEE International Conference on Ultra-Wideband (ICUWB 2008), pp. 229-232, Hannover, Germany, Sep 10-12, 2008

Ultra-Wideband Transceiver Design in Deep Submicron CMOS - Receiver

Oliver Schmitz, Sven Karsten Hampel, Ilona Rolfes - EEEfCOM 2008 Workshop und Entwicklerforum, Ulm, Germany, May 28-29, 2008

Sievenpiper HIS and its influence on antenna correlation

Sven Karsten Hampel, Oliver Schmitz, Ilona Rolfes - Advances in Radio Science, DOI:10.5194/ars-6-39-2008, Vol. 6, pp. 39-44, 2008

Calibration-measurement unit for the automation of vector network analyzer measurements

Ilona Rolfes, Bianca Will, Burkhard Schiek - Advances in Radio Science, DOI:10.5194/ars-6-27-2008, Vol. 6, pp. 27-30, 2008

Compact mode-matched excitation structures for radar distance measurements in overmoded circular waveguides

Gunnar Armbrecht, Eckhard Denicke, Ilona Rolfes, Nils Pohl, Thomas Musch, Burkhard Schiek - Advances in Radio Science, DOI:10.5194/ars-6-9-2008, Vol. 6, pp. 9-17, 2008

Considerations on the frequency resource of professional wireless microphone systems

Sven Dortmund, Matthias Fehr, Ilona Rolfes - Advances in Radio Science, DOI:10.5194/ars-6-35-2008, Vol. 6, pp. 35-38, 2008

MIMO performance of a planar logarithmically periodic antenna with respect to measured channel matrices

Hanno Rabe, Daniel Kornek, Matthias Stege, Ilona Rolfes - Advances in Radio Science, DOI:10.5194/ars-6-55-2008, Vol. 6, pp. 55-61, 2008

Usage of the contactless vector network analysis with varying transmission line geometries

Thomas Zelder, Bernd Geck, Ilona Rolfes, Hermann Eul - Advances in Radio Science, DOI:10.5194/ars-6-19-2008, Vol. 6, pp. 19-25, 2008

Automated Measurements of Complex Scattering Parameters

Ilona Rolfes, Bianca Will - German Microwave Conference (GeMiC 2008), ITG-FB 206, pp. 1-4, Hamburg, March 10-12, 2008

Tunable Directional Coupler

Thomas Zelder, Elena Vallés Lluch, Bernd Geck, Ilona Rolfes, Hermann Eul - German Microwave Conference (GeMiC 2008), pp. 1-4, Hamburg, March 10-12, 2008

Ultra-Wideband Transceiver Design in Deep Submicron CMOS - Receiver

Oliver Schmitz, Sven Karsten Hampel, Ilona Rolfes - 3rd IEEE-UWB Forum on Sensing and Communication, Graz, Austria, March 3, 2008

2007
Multiport Measurement Methods - Invited Paper

Ilona Rolfes - 37th European Microwave Conference, Workshop on Determining Accuracy of Measurements at High Frequencies - from Error to Uncertainty, Munich, Germany, Oct 2007

Contactless network analysis system for the calibrated measurement of the scattering parameters of planar two-port devices

Thomas Zelder, Bernd Geck, Michael Wollitzer, Ilona Rolfes, Hermann Eul - 37th European Microwave Conference (EUMC 2007), pp. 242 – 245, Munich, Germany, Oct 9-12, 2007

Fully automated measurements of calibrated scattering parameters of multi-ports with a two-port network analyzer

Bianca Will, Ilona Rolfes, Burkhard Schiek - 37th European Microwave Conference (EUMC 2007), pp. 242 – 245, Munich, Germany, Oct 9-12, 2007

Impact of Sievenpiper High Impedance Surfaces on the Performance of Planar Cross-Dipole Polarization Diversity Antennas

Oliver Schmitz, Sven Karsten Hampel, Ilona Rolfes, Hermann Eul - 10th European Conference on Wireless Technology (ECWT 2007), pp.118-121, Munich, Germany, Oct 8-10, 2007

Antenna far-field characterisation based on calibrated measurements of the electric and magnetic near-field components

Nils Pohl, Gunnar Armbrecht, Ilona Rolfes, Thomas Musch, Josef Hausner, Burkhard Schiek - Kleinheubacher Tagung 2007, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 24-27, 2007

Calibration-Measurement Unit for the Automatization of Vector Network Analyzer Measurements

Ilona Rolfes, Bianca Will, Burkhard Schiek - Kleinheubacher Tagung 2007, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 24-27, 2007

Compact mode-matched excitation structures for radar distance measurements in overmoded circular waveguides

Gunnar Armbrecht, Eckhard Denicke, Ilona Rolfes, Nils Pohl, Thomas Musch, Burkhard Schiek - Kleinheubacher Tagung 2007, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 24-27, 2007

Considerations on the frequency resource of professional wireless microphone systems

Sven Dortmund, Matthias Fehr, Ilona Rolfes - Kleinheubacher Tagung 2007, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 24-27, 2007

MIMO performance of a planar logarithmically periodic antenna with respect to measured channel matrices

Hanno Rabe, Daniel Kornek, Matthias Stege, Ilona Rolfes - Kleinheubacher Tagung 2007, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 24-27, 2007

Sievenpiper HIS and its influence on antenna correlation

Sven Karsten Hampel, Oliver Schmitz, Ilona Rolfes - Kleinheubacher Tagung 2007, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 24-27, 2007

Usage of the Contactless Vector Network Analysis with Varying Transmission Line Geometries

Thomas Zelder, Bernd Geck, Ilona Rolfes, Hermann Eul - Kleinheubacher Tagung 2007, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 24-27, 2007

Investigation of Performance Gain in 802.11n Systems due to Antenna Switching Using Simulated Radiation Patterns

Daniel Kornek, Hanno Rabe, Sven Karsten Hampel, Oliver Schmitz, Gunnar Armbrecht, Ilona Rolfes - 1st Workshop on "Commercial MIMO-Components and -Systems Workshop", Duisburg, Germany, Sep 13-14, 2007

MIMO Performance of a Planar Logarithmically-Periodic Antenna

Hanno Rabe, Daniel Kornek, Sven Karsten Hampel, Oliver Schmitz, Gunnar Armbrecht, Ilona Rolfes - 1st Workshop on "Commercial MIMO-Components and -Systems Workshop", Duisburg, Germany, Sep 13-14, 2007

A low noise fractional-N approach with a short periodicity of the division factor sequences

Thomas Musch, Nils Pohl, Ilona Rolfes, Josef Hausner - Proceedings of European Microwave Association (EuMA), Vol. 3, pp. 84-92, June 2007

Standing Wave Meters and Network Analyzers - Measurement of Networks at Microwave Frequencies

Ilona Rolfes, Andreas Gronefeld, Burkhard Schiek - Encyclopedia of Electrical and Electronics Engineering, Wiley Interscience, 2007

Contactless vector network analysis using diversity calibration with capacitive and inductive coupled probes

Thomas Zelder, Ilona Rolfes, Hermann Eul - Advances in Radio Science, DOI:10.5194/ars-5-19-2007, Vol. 5, pp. 19-28, 2007

Correlation Properties of Dual Polarized Antennas with Finite Pattern Orthogonality in Mobile Fading Channels

Gunnar Armbrecht, Oliver Klemp, Ilona Rolfes - Advances in Radio Science, DOI:10.5194/ars-5-95-2007, Vol. 5, pp. 95-99, 2007

Methods for the calibrated measurement of the scattering parameters of planar multi-port devices

Ilona Rolfes, Burkhard Schiek - Advances in Radio Science, DOI:10.5194/ars-5-439-2007, Vol. 5, pp. 439-445, 2007

Novel algorithms for the characterization of n-port networks by using a two-port network analyzer

Bianca Will, Ilona Rolfes, Burkhard Schiek - Advances in Radio Science, DOI:10.5194/ars-5-13-2007, Vol. 5, pp. 13-17, 2007

Obstacle-based self-calibration techniques for the determination of the permittivity of liquids

Ilona Rolfes - Advances in Radio Science, DOI:10.5194/ars-5-29-2007, Vol. 5, pp. 95-99, 2007

2006
Dual polarisierbare planare UWB-Mehrarmantennen zur Schwundkompensation in Mehrwege-Übertragungskanälen

Gunnar Armbrecht, Oliver Klemp, Sven Karsten Hampel, Oliver Schmitz, Daniel Kornek, Ilona Rolfes, Hermann Eul - VDE / ITG Diskussionssitzung - Antennen und Messverfahren für Ultra-Wide-Band (UWB)-Systeme, UWB Workshop 2006, IMST GmbH, Kamp-Lintfort, Germany, Dec 6-7, 2006

Correlation Properties of Dual Polarized Antennas with Finite Pattern Orthogonality in Mobile Fading Channels

Gunnar Armbrecht, Oliver Klemp, Ilona Rolfes - Kleinheubacher Tagung 2006, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 25-29, 2006

Kontaktlose Vektornetzwerkanalyse unter Verwendung der Diversitätskalibrierung mit kapazitiven und induktiven Messsonden

Thomas Zelder, Ilona Rolfes, Hermann Eul - Kleinheubacher Tagung 2006, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 25-29, 2006

Novel algorithms for the identification of n-port networks by using a two-port network analyzer

Bianca Will, Ilona Rolfes, Burkhard Schiek - Kleinheubacher Tagung 2006, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 25-29, 2006

Obstacle-based self-calibration techniques for the determination of the permittivity of liquids

Ilona Rolfes - Kleinheubacher Tagung 2006, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 25-29, 2006

Practical aspects of implementing the TRL calibration

Jens Leinhos, U. Arz, Ilona Rolfes, Hermann Eul - Kleinheubacher Tagung 2006, U.R.S.I. Landesausschuss in der Bundesrepublik Deutschland e.V., Miltenberg, Germany, Sep 25-29, 2006

A Novel Method for the Determination of the Dielectric Properties of Liquids at Microwave Frequencies

Ilona Rolfes, Burkhard Schiek - 36th European Microwave Conference (EUMC 2006), pp. 399-402, Manchester, United Kingdom, Sep 10-15, 2006

On the Application of a Novel Laser-Based Rapid Prototyping Process for Planar Antenna Elements

Oliver Klemp, M. Hüske, Ilona Rolfes, Hermann Eul - 36th European Microwave Conference (EUMC 2006), pp. 878-881, Manchester, United Kingdom, Sep 10-15, 2006

Noise in High-Frequency Circuits and Oscillators

Burkhard Schiek, Ilona Rolfes, Heinz-Jürgen Siweris - John Wiley & Sons Inc., June 2006

Rauschmessungen und rauscharme Verstärker im Mikrowellenbereich

Ilona Rolfes - Telekommunikation aktuell, Verlag für Wissenschaft und Leben, Erlangen, Heft 7-12, pp. 1-14, 2006

Methods for the Calibration of Microwave Free Space Measurement Systems

Ilona Rolfes, Burkhard Schiek - Proceedings of the Antenna Measurement Techniques Association (AMTA) Europe Symposium, pp. 287-291, Munich, Germany, May 1-4, 2006

Nouvelles Méthodes de Mesure pour Caractériser la Permittivité des Liquides

Ilona Rolfes, Burkhard Schiek - Actes de conférences des 9èmes Journées de Caractérisation Microondes et Matériaux, Saint-Etienne, France, March 29-31, 2006

2005
Measurement of the Scattering-Parameters of Planar Multi-Port Devices

Ilona Rolfes, Burkhard Schiek - Proceedings of the 35th European Microwave Conference (EUMC 2005), pp.721-724, Paris, France, Oct 4-6, 2005

An Error Correction Procedure for Multi-Port measurements at High Frequencies

Ilona Rolfes, Burkhard Schiek - Advances in Radio Science, DOI:10.5194/ars-3-59-2005, Vol. 3, pp. 59-64, 2005

Multiport method for the measurement of the scattering parameters of N-ports

Ilona Rolfes, Burkhard Schiek - IEEE Transactions on Microwave Theory and Techniques, Vol. 53, pp. 1990-1996, June 2005

Méthode de correction pour la mesure hautes fréquences des objets multi-ports

Ilona Rolfes, Burkhard Schiek - Actes de conférence des 14èmes Journées Nationales Microondes, Nantes, France, May 11-13, 2005

2004
An Efficient Method for the Measurement of the Scattering Parameters of Multi-Ports with a Two-Port Network Analyzer

Ilona Rolfes, Burkhard Schiek - Proceedings of the 34th European Microwave Conference, Vol. 2, pp. 797-800, Amsterdam, Netherlands, Oct 11-15, 2004

Microwave Free Space Calibration Methods

Ilona Rolfes - Proceedings of the Conference on Precision Electromagnetic Measurement, pp. 72-73, London, United Kingdom, June 27 - July 2, 2004

Calibration methods for microwave free space measurements at Microwave Frequencies

Ilona Rolfes, Burkhard Schiek - Advances in Radio Science, DOI:10.5194/ars-2-19-2004, Vol. 2, pp. 19-25, 2004

2003
Self-Calibration Procedures for Vector Network Analyzers on the Basis of Reflection Standards

Ilona Rolfes, Burkhard Schiek - Proceedings of the 33rd European Microwave Conference, Vol. 1, pp. 93-96, Munich, Germany, Oct 2-10, 2003

Calibration of vector network analyzers on the basis of the LRR-method

Ilona Rolfes, Burkhard Schiek - Advances in Radio Science, DOI:10.5194/ars-1-21-2003, Vol. 1, pp. 21-25, 2003

Méthode de Calibrage pour les Analyseurs de Réseau Vectoriel à Base des Standards Réflexifs

Ilona Rolfes, Burkhard Schiek - Actes du Colloque Telecom 2003, pp. 148-151, Marrakech, Morocco, 2003

LRR - A self-calibration technique for the calibration of vector network analyzers

Ilona Rolfes, Burkhard Schiek - IEEE Transactions on Instrumentation and Measurement, Vol. 52, No. 2, pp. 316-319, April 2003

Rauschmessungen und rauscharme Verstärker bei kryogenen Temperaturen

Ilona Rolfes, Thomas Musch, Burkhard Schiek - Tagungsband zum 8. Statusseminar Supraleitung und Tieftemperaturtechnik, VDI-Verlag 2004, Garmisch-Partenkirchen, Germany, Feb 13-14, 2003

2002
Kalibrierung vektorieller Netzwerkanalysatoren auf der Basis des 2-Zustands-Multiple-N-Verfahrens

Ilona Rolfes, Burkhard Schiek - Kleinheubacher Berichte, Band 45, pp. 13-19, Miltenberg, Germany, Sep 30 - Oct 2, 2002

Calibration Methods for Free Space Dielectric Microwave Measurements with a 4-Channel-Network-Analyzer

Ilona Rolfes, Burkhard Schiek - Proceedings of the 32nd European Microwave Conference, pp. 1077-1080, Milan, Italy, Sep 23-27, 2002

Schutzrecht - Das LRR-Verfahren zur Kalibrierung von vektoriellen 4-Messstellen-Netzwerkanalysatoren

Ilona Rolfes, Burkhard Schiek - Patentnummer DE10242932B4, September 2002

The Multiple-N-Method for the Calibration of Vector Network Analyzer

Ilona Rolfes, Burkhard Schiek - Proceedings of the Conference on Precision Electromagnetic Measurement (CPEM 2002), pp. 134-135, Ottawa, Kanada, June 17-21, 2002

Methoden zur Präzisions-Messung der Streu- und Rauschparameter linearer Zweitore im Mikrowellenbereich

Ilona Rolfes - Dissertation, Shaker-Verlag, ISBN 978-3-8322-0666-6, 2002

2001
A Highly Linear Digital Detector for Noise Parameter Measurements at Microwave Frequencies

Ilona Rolfes, Thomas Musch, Burkhard Schiek - Microwave Engineering, pp. 61-65, Nov 2001

A Highly Linear Digital Detector for Noise Parameter Measurements at Microwave Frequencies

Ilona Rolfes, Thomas Musch, Burkhard Schiek - Proceedings of the 31st European Microwave Conference, Vol. 1, pp. 371-374, London, United Kingdom, Sep 24-26, 2001

Das Multiple-N-Verfahren zur Kalibrierung vektorieller Netzwerkanalysatoren

Ilona Rolfes, Burkhard Schiek - Kleinheubacher Berichte, Band 44, pp. 38-47, Kleinheubach, Germany, Sep 24-28, 2001

Cryogenic Noise Parameter Measurements of Microwave Devices

Ilona Rolfes, Thomas Musch, Burkhard Schiek - IEEE Transactions on Instrumentation and Measurement, Vol. 50, No. 2, pp. 373-376, April 2001

2000
Ein robustes Verfahren zur Bestimmung der Rauschparameter linearer Zweitore

Ilona Rolfes, Thomas Musch, Burkhard Schiek - Tagungsband zum 7. Statusseminar Supraleitung und Tieftemperaturtechnik, VDI-Verlag 2001, pp. 153-156, Garmisch-Partenkirchen, Germany, Dec 14-15, 2000

Charakterisierung der Rauscheigenschaften linearer Zweitore bei kryogenen Temperaturen

Ilona Rolfes, Thomas Musch, Burkhard Schiek - Kleinheubacher Berichte, Band 43, pp. 138-146, Kleinheubach, Germany, Sep 25-29, 2000

Schutzrecht - Das Multiple-N-Verfahren zur Kalibrierung vektorieller 4-Mess-stellen-Netzwerkanalysatoren

Ilona Rolfes, Burkhard Schiek - Patentnummer DE10047228B4, September 2000

Cryogenic Noise Parameter Measurements of Microwave Devices

Ilona Rolfes, Thomas Musch, Burkhard Schiek - Proceedings of the Conference on Precision Electromagnetic Measurement, pp. 373-376, Sydney, Australia, May 14-19, 2000

1999
Die vollständige und genaue Bestimmung von Zweitorrauschparametern ohne zusätzliche Messung der Zweitoreingangsimpedanz

Ilona Rolfes, Reinhard Stolle, Burkhard Schiek - Kleinheubacher Berichte, Band 42, pp. 420-427, Kleinheubach, Germany, Sep 27 - Oct 10, 1999

A Highly Linear Frequency Ramp Generator based on a Fractional Divider Phase-Locked-Loop

Thomas Musch, Ilona Rolfes, Burkhard Schiek - IEEE Transactions on Instrumentation and Measurement, Vol. 48, No. 2, pp. 634-637, April 1999

1998
Fractional Divider Concepts with Phase-Lock-Control for the Generation of Precise Linear Frequency Ramps

Thomas Musch, Ilona Rolfes, Burkhard Schiek - Proceedings of the 28th European Microwave Conference, Vol. 1, pp. 451-456, Amsterdam, Netherlands, 1998

A Highly Linear Frequency Ramp Generator based on a Fractional Divider Phase-Locked-Loop

Thomas Musch, Ilona Rolfes, Burkhard Schiek - Proceeding of the Conference on Precision Electromagnetic Measurement (CPEM 1998), pp. 602-603, Washington D.C., USA, July 7-10, 1998