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


In this contribution a dielectric hemispherical antenna allowing wide range beam steering for 24 GHz radar applications is presented. A feeding concept for a hemispherical lens is developed using the geometrical-optical lens approach, therewith a high gain of 24 dBi is achieved with a lens radius of 90 mm. The lens is fed by a corrugated horn antenna to provide a low side lobe level up to a steering angle of 50°. 3D-electromagnetic field simulations and measurements confirm the antenna performance in the chosen scenario.


Tags: Antenna, Dielectric, Hemispherical, lens