Title :
Analysis and design of dielectric zoned hollow lens antenna at W-band
Author :
Yi, Yuzhong ; Dou, Wenbin
Author_Institution :
State Key Lab. of Millimeter Waves, Southeast Univ., Nanjing, China
fDate :
Nov. 29 2010-Dec. 2 2010
Abstract :
A zoned hollow ellipsoidal lens antenna fed by microstrip patches in millimeter wave is designed in this paper. The lens has 5.4λ radius and 13λ height, with a four-zone area hollowed out to reduce the weight of the antenna. The optimized antenna achieves a pencil beam for single feed operation at 77GHz, and its half power beamwidth (HPBW) for E plane and H plane are 5°. The Side Lobe Level (SLL) of the antenna is lower than -15.5dB at the frequency of 76GHz~77.5GHz, while the RL (Return Loss) is lower than -10dB. Then, the multibeam characteristic of the lens is discussed in the paper. The radiation pattern for 7 feeds indicates a good performance in multibeam operation condition.
Keywords :
antenna feeds; lens antennas; microstrip antennas; W-band; dielectric zoned hollow lens antenna; ellipsoidal lens antenna; four-zone area; frequency 77 GHz; half power beamwidth; microstrip patches; multibeam operation condition; pencil beam; side lobe level; single feed operation;
Conference_Titel :
Antennas Propagation and EM Theory (ISAPE), 2010 9th International Symposium on
Conference_Location :
Guangzhou
Print_ISBN :
978-1-4244-6906-2
DOI :
10.1109/ISAPE.2010.5696389
