Title :
An array fed dual reflector antenna at 36 GHz
Author_Institution :
AK Electromagn. Inc., Dollard-des-Ormeaux, Que., Canada
Abstract :
The author describes an array-fed dual imaging reflector antenna at 36 GHz. The antenna system comprises a large parabolic main reflector fed from a small linear phased array via a confocal Gregorian subreflector. The phased array is magnified by the two reflectors and an image of the near field of the phased array is formed on the aperture of the reflector. The scanning capability of the antenna system is demonstrated. Typical antenna patterns computed for a 100- lambda diameter main reflector operating at 36 GHz are shown.<>
Keywords :
antenna feeders; antenna phased arrays; reflector antennas; scanning antennas; 36 GHz; EHF; antenna patterns; array fed dual reflector antenna; confocal Gregorian subreflector; linear phased array; near field; parabolic main reflector; scanning capability; Antenna arrays; Apertures; Degradation; Feeds; Optical arrays; Optical polarization; Phased arrays; Reflector antennas; Wideband;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1989. AP-S. Digest
Conference_Location :
San Jose, CA, USA
DOI :
10.1109/APS.1989.135029
