Title :
A new dual-band primary feed for reflector antennas
Author :
Lepeltier, P. ; Salvan, M. ; Mongrand, P.
Author_Institution :
Alcatel Espace, Toulouse, France
Abstract :
A new dual-band primary feed for reflector antenna is discussed. It is based on a judicious use of a metallic patch or ring inside the launcher. This makes it possible to reduce the length of the launcher. Special care has been taken to optimize isolation between receive and transmit signals. Good radio-frequency performances were observed for both receive and transmit missions. L-band and S-band radiation patterns are presented. The S/L square horn was designed for mobile satellite communications.<>
Keywords :
antenna feeders; directive antennas; mobile radio systems; reflector antennas; satellite antennas; waveguide antennas; L-band; S-band; dual-band primary feed; isolation; launcher; metallic patch; mobile satellite communications; radiation patterns; radio-frequency performances; receive signals; reflector antennas; ring; square horn antenna; transmit signals; Antenna feeds; Antenna radiation patterns; Bandwidth; Dual band; L-band; Polarization; Radio frequency; Reflector antennas; Satellite broadcasting; Thermal conductivity;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1990. AP-S. Merging Technologies for the 90's. Digest.
Conference_Location :
Dallas, TX, USA
DOI :
10.1109/APS.1990.115273
