Title :
Factors influencing sidelobes on copol patterns of centre fed dual reflector earth station antennas
Author_Institution :
Spar Aerosp. Ltd., Ste. Anne de Bellevue, Que., Canada
Abstract :
Various factors which have on influence in increasing the sidelobe levels in symmetrical Cassegrain antennas are highlighted. Also shown are computed and measured values of copol patterns for a 40-ft. Cassegrain antenna. A geometric optic synthesis method was adapted to shape the profile of this dual-reflector system.<>
Keywords :
antenna radiation patterns; reflector antennas; satellite ground stations; centre fed dual reflector earth station antennas; copol patterns; geometric optic synthesis method; sidelobes; symmetrical Cassegrain antennas; Antenna measurements; Apertures; Feeds; Geometrical optics; Optical design; Performance analysis; Reflector antennas; Road transportation; Satellite ground stations; Testing;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1988. AP-S. Digest
Conference_Location :
Syracuse, NY, USA
DOI :
10.1109/APS.1988.94213
