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 Results 1 - 7 of 7  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
Okinawa Okinawaken Shichoson Jichikaikan A study of flexible payload for future satellite communications -- The change of service area by flexible payload --
Yoichi Koishi, Hiroshi Ooshima, Kunio Endoh (NEC), Takaomi Matsuzaki (NTSS) SAT2014-62
 [more] SAT2014-62
SAT 2013-10-25
Fukuoka IP CITY HOTEL Fukuoka A study of Ka band high capacity of multi-beam communications -- The dependence of characteristics of directivity --
Yoichi Koishi (NEC) SAT2013-45
Ka band high throughput satellite business is on going. These service can provides more than the 100Gbps not to the 1Gbp... [more] SAT2013-45
Tokyo NICT-Honbu A study of array feed design with large reflector
Takaomi Matsuzaki, Katsunori Hirayama, Yasuhiko Yamasa (NEC TOSHIBA Space Systems, Ltd), Yoichi Koishi (NEC Corp.), Yoshiyuki Fujino, Amane Miura, Naokazu Hamamoto, Ryutaro Suzuki (NICT) SAT2009-56
Satllite communication using handy terminal have been operated. This paper describes the array feed design of this antte... [more] SAT2009-56
Tokyo NICT-Honbu A study of flexible repeater for future satellite communications
Masayoshi Yoneda, Takeo Kumagai (NEC TOSHIBA Space Systems, Ltd), Yoichi Koishi (NEC Corp.), Ryutaro Suzuki (NICT) SAT2009-58
The mission life of the communication satellite is reached to fifteen years. Meanwhile, standard communication style mov... [more] SAT2009-58
SAT 2008-11-07
Overseas Riviera Hotel Pusan A study of the mobile satellite communication using large reflector -- communication capacity analysis using on board beam reconfiguration --
Yoshiyuki Fujino, Masato Tanaka, Naokazu Hamamoto (NICT), Yoichi Koishi, Yoshiaki Suzuki (NEC) SAT2008-52
The future mobile satellite system communication aiming at communications to small and low price mobile could be perfect... [more] SAT2008-52
SANE 2006-08-25
Tokyo Kikai-Shinko-Kankan Bldg. A study of satellite mobile communication by large reflector antenna -- The various applications on large reflector antenna --
Akio Tsujihata (JAXA), Yoichi Koishi, Yuji Tsutsumi (NTS) SANE2006-96
 [more] SANE2006-96
SAT 2004-10-21
- 2004-10-22
Overseas Seoul Education and Culture Center BBISS(Broad Band Internet Service via Satellite) Ka-band Broadband Satellite Plan -- How to realize broadband service with high availability in BBISS --
Kenichi Tatsukawa, Wakoto Akinaga, Kenichi Yamada, Katsumasa Hashimoto (BBISS), Tamio Okui, Yoichi Koishi, Yasuo Horiuchi (NTSpace)
 [more] SAT2004-140
 Results 1 - 7 of 7  /   
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