S-Band Mobile Satellite Communications and Multimedia Broadcasting Onboard Equipment for ETS-VIII

Yoichi KAWAKAMI  Shigetoshi YOSHIMOTO  Yasushi MATSUMOTO  Takashi OHIRA  Toshiyuki IDE  

IEICE TRANSACTIONS on Communications   Vol.E82-B   No.10   pp.1659-1666
Publication Date: 1999/10/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Satellite Communication
S-band,  mobile satellite communication,  satellite broadcasting,  handheld terminals,  geostationary satellite,  

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To realize S-band mobile satellite communications and broadcasting systems, the onboard mission system and equipment were designed for the Japanese Engineering Test Satellite VIII. The system performs voice communications using handheld terminals, high-speed data communications, and multimedia broadcasting through a geostationary satellite. To enhance system efficiency and flexibility, the onboard mission system features phased-array-fed reflector antennas with large antenna diameter and baseband switching through onboard processors. Configurations and performance of the subsystems and key onboard equipment, large deployable reflectors, feed arrays, beam forming networks and onboard processors, are presented. The S-band mobile systems and onboard equipment will be verified through in-orbit experiments scheduled for 2002.