Title :
Electrical performance evaluation of large multi-beam antenna system for ETS-VI
Author :
Itanami, Takao ; Kondo, Akira ; Kumazawa, Hiroyuki ; Abe, Hidehike
Author_Institution :
NTT Corp., Kanagawa, Japan
Abstract :
The Japanese national project to launch a 2-ton-class geostationary satellite, the ETS-VI (Engineering Test Satellite VI) is now in progress. An on-board antenna system and transponders for the fixed and mobile multibeam satellite communications system are being developed. As the (reflector) antenna system is very large and flexible, it is impossible, on the ground, to measure the performance of the in-orbit configuration to evaluate in-orbit antenna performance. The authors describe a performance evaluation method for the flexible large multibeam antenna system using an antenna CAD (computer-aided design) system. The evaluated in-orbit performance of the antenna system flight model for ETS-VI is presented.<>
Keywords :
CAD; electronic equipment testing; mobile radio systems; reflector antennas; satellite antennas; telecommunications computing; ETS-VI; Engineering Test Satellite VI; antenna CAD system; antenna system flight model; computer-aided design; electrical performance evaluation; fixed satellite communication; geostationary satellite; in-orbit antenna performance; mobile multibeam satellite communications; on-board antenna system; reflector antennas; transponders; Antenna measurements; Artificial satellites; Distortion measurement; Frequency selective surfaces; Gravity; Performance evaluation; Satellite antennas; Satellite broadcasting; Telegraphy; Testing;
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.1990.115357
