Title :
Sidelobes cancellation in an offset reflector antenna system using a linear phased array feed
Author :
Chang, D.-C. ; Hung, C.-I. ; Hu, C.-N. ; Chen, H.-J. ; Ho, C.-C. ; Ho, K.-T.
Author_Institution :
Electron. Dept., Chung Shan Inst. of Sci. & Technol., Lung-Tan, Taiwan
fDate :
June 28 1993-July 2 1993
Abstract :
A pattern synthesis of an offset reflector antenna system using a five-bit phase-only controlled linear phased array feed is presented. Experimental results indicate this configuration can enhance the performance of an offset reflector antenna system in both polluted microwave and surface distortion environments. The implementation of a linear phased array feed in an offset reflector antenna system not only ameliorates reflector surface distortion, but also rejects jammers out of the antenna system by adjusting nulls to jammer directions. With this configuration, the reflector antenna system also has a larger scan angle than a traditional single feed reflector antenna system.<>
Keywords :
antenna phased arrays; antenna radiation patterns; jamming; linear antenna arrays; offset reflector antennas; phase control; reflector antenna feeds; reflector antennas; scanning antennas; configuration; jammers; linear phased array feed; offset reflector antenna system; pattern synthesis; performance; polluted microwave environment; scan angle; sidelobe cancellation; surface distortion; Antenna feeds; Control system synthesis; Directive antennas; Jamming; Linear antenna arrays; Microwave antennas; Phased arrays; Pollution; Reflector antennas; Surface contamination;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1993. AP-S. Digest
Conference_Location :
Ann Arbor, MI, USA
Print_ISBN :
0-7803-1246-5
DOI :
10.1109/APS.1993.385576
