Conceptual design of a dielectric hemispherical lens antenna with a congruent radiation pattern for beam steering applications

Author

Dahl, Claus ; Will, Bianca ; Schulz, Claudia ; Rolfes, Ilona ; Baer, Christoph ; Musch, Thomas

Author_Institution

Inst. of Microwave Syst., Ruhr-Univ., Bochum, Germany

fYear

2013

fDate

7-13 July 2013

Firstpage

1296

Lastpage

1297

Abstract

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.

Keywords

antenna radiation patterns; beam steering; horn antennas; lens antennas; microwave antennas; 3D-electromagnetic field simulations; beam steering applications; congruent radiation pattern; corrugated horn antenna; dielectric hemispherical lens antenna; frequency 24 GHz; geometrical-optical lens approach; Dielectric measurement; Dielectrics; Radar;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE

Conference_Location

Orlando, FL

ISSN

1522-3965

Print_ISBN

978-1-4673-5315-1

Type

conf

DOI

10.1109/APS.2013.6711308

Filename

6711308