Title :
A 77GHz eight-channel shaped beam planar reflector antenna
Author :
Feil, Peter ; Mayer, Winfried ; Menzel, Wolfgang
Author_Institution :
Inst. of Microwave Tech., Univ. of Ulm, Ulm
Abstract :
An eight channel planar dual reflector antenna to be used in a 77 GHz automotive radar sensor is presented. To meet the requirements of a combined medium and long range sensor, the antenna beams are shaped by use of dielectric radiators as feeds. These feed elements are designed to broaden particular beams either only in the azimuthal plane or in both planes. The characteristics of the feed elements were simulated using the finite integration in time domain method (CST Microwave Studio). To predict the radiation pattern of the dual reflector antenna, the FIT simulation results served as input for a ray tracing based mathematical antenna model.
Keywords :
antenna feeds; antenna radiation patterns; multifrequency antennas; planar antennas; radar antennas; ray tracing; reflector antennas; road vehicle radar; sensors; time-domain analysis; antenna beams; antenna radiation pattern; automotive radar sensor; azimuthal plane; dielectric radiators; eight-channel shaped beam planar reflector antenna; feed elements; finite integration; frequency 77 GHz; mathematical antenna model; ray tracing; time domain method; Antenna feeds; Antenna radiation patterns; Automotive engineering; Azimuthal plane; Dielectrics; Microwave theory and techniques; Predictive models; Radar antennas; Reflector antennas; Sensor phenomena and characterization;
Conference_Titel :
Antennas and Propagation, 2009. EuCAP 2009. 3rd European Conference on
Conference_Location :
Berlin
Print_ISBN :
978-1-4244-4753-4
Electronic_ISBN :
978-3-00-024573-2
