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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP, SAT (Joint) |
2012-07-26 13:00 |
Hokkaido | Hokkaido Univ. | Study on economic effects of the satellite communications in the Great East Japan Earthquake Morio Toyoshima, Takashi Takahashi, Yoshiyuki Fujino, Maki Akioka (NICT)  SAT2012-9 |
[more] | SAT2012-9 pp.1-12 |
| AP, SAT (Joint) |
2012-07-27 10:10 |
Hokkaido | Hokkaido Univ. | Optimum Element Size of Array-Fed Reflector Antennas for 100-Beam-Class Multibeam Communications Satellite Yoshiyuki Fujino, Naokazu Hamamoto, Amane Miura, Teruaki Orikasa, Hiromitsu Wakana (NICT), Shin-ichi Yamamoto, Takashi Yanagi, Yoshio Inasawa, Masahiko Funada, Naoyuki Natori (Mitsubishi Electric Corp.) SAT2012-16 |
Mobile satellite communications systems using 100-beam-class multibeam on-board antenna have been proposed and some of t... [more] | SAT2012-16 pp.49-54 |
| SAT, WBS (Joint) |
2012-05-24 14:30 |
Iwate | Iwate Prefectural University | Development of Disaster Satellite Communication Experiment System using WINDS Takashi Takahashi, Shinichi Taira, Yoshiyuki Fujino, Akira Akaishi, Toshio Asai, Naoko Yoshimura, Maki Akioka, Morio Toyoshima (NICT) SAT2012-2 |
In the Great East Japan Earthquake of 2011, the terrestrial communications network suffered serious damage, and the effe... [more] | SAT2012-2 pp.7-11 |
| SAT, SANE (Joint) |
2012-02-16 13:50 |
Mie | Area evaluation of wideband transmission propagation for Quasi Zenith Isao Nakazawa, Kazuhiro Kimura, Yoshiyuki Fujino, Shin'ichi Hama (NICT) SANE2011-160 SAT2011-67 |
In Japan, mobile satellite communication systems are now in service on S-band frequency. Moreover, the Quasi Zenith Sat... [more] | SANE2011-160 SAT2011-67 pp.1-6(SANE), pp.13-18(SAT) |
|
| SAT | 2011-12-13 09:00 |
Aichi | Nagoya University | [Invited Talk]
Research and development issues of satellite communication systems for large scale disaster mitigation Naoto Kadowaki, Takashi Takahashi, Maki Akioka, Yoshiyuki Fujino, Morio Toyoshima (NICT) SAT2011-52 |
[more] | SAT2011-52 pp.83-87 |
| SAT | 2011-12-13 13:30 |
Aichi | Nagoya University | Development of Optically Controlled Beam-Forming Network Akira Akaishi, Takashi Takahashi, Yoshiyuki Fujino, Mitsugu Ohkawa, Toshio Asai, Ryutaro Suzuki (NICT), Hirofumi Matsuzawa (Mitsubishi Electric) SAT2011-59 |
NICT has been developing a test model of an optically controlled beam-forming network(OBFN) for a future multiple-beam a... [more] | SAT2011-59 pp.119-124 |
| OPE, MW, MWP, EMT, EST, IEE-EMT [detail] | 2011-07-21 15:40 |
Hokkaido | High efficiency optically controlled beam former by beam shaping optics Tomohiro Akiyama, Hirofumi Matsuzawa, Eisuke Haraguchi, Hideo Sumiyoshi, Toshiyuki Ando (Mitsubishi Electric Corp.), Akira Akaishi, Takashi Takahashi, Yoshiyuki Fujino, Ryutaro Suzuki (NICT) MW2011-48 OPE2011-35 EST2011-34 MWP2011-16 |
We propose and demonstrate an optically controlled multiple-beam phased array antenna employing spatial light modulator.... [more] | MW2011-48 OPE2011-35 EST2011-34 MWP2011-16 pp.61-66 |
|
| AP, SAT (Joint) |
2011-07-14 14:25 |
Nagano | Fac. Eng., Shinshu Univ. | Wideband radio propagation analysis for Quasi Zenith Satellite Systems at high elevation angles Isao Nakazawa, Kazuhiro Kimura, Yoshiyuki Fujino, Shin'ichi Hama (NICT) SAT2011-10 |
In Japan, mobile satellite communication systems are now in service on S-band frequency. Moreover, the Quasi Zenith Sat... [more] | SAT2011-10 pp.13-18 |
| AP, SAT (Joint) |
2011-07-15 09:00 |
Nagano | Fac. Eng., Shinshu Univ. | Interference Measurement of Mobile Terminals and Base Stations Using an Aircraft for Study of Satellite-Terrestrial Integrated Mobile Communication System Hiroyuki Tsuji, Amane Miura, Yoshiyuki Fujino, Naokazu Hamamoto, Hiromitsu Wakana (NICT) SAT2011-12 |
[more] | SAT2011-12 pp.25-30 |
| AP, SAT (Joint) |
2011-07-15 09:25 |
Nagano | Fac. Eng., Shinshu Univ. | Transmission Characteristics of Variable Scanning Spot Antenna using Optical Beam Forming Network Hirofumi Matsuzawa, Tomohiro Akiyama, Hideo Sumiyoshi, Toshiyuki Ando, Masateru Nagase (MELCO), Akira Akaishi, Takashi Takahashi, Yoshiyuki Fujino, Ryutaro Suzuki (NICT) SAT2011-13 |
[more] | SAT2011-13 pp.31-36 |
| SANE | 2011-06-24 15:45 |
Ibaraki | Tsukuba Space Center (JAXA) | Experimental results of multiple-beam optically controlled beamformer using spatial light modulators Tomohiro Akiyama, Hirofumi Matsuzawa, Eisuke Haraguchi, Hideo Sumiyoshi (Mitsubishi Electric Corp.), Akira Akaishi, Takashi Takahashi, Yoshiyuki Fujino, Ryutaro Suzuki (NICT) SANE2011-43 |
[more] | SANE2011-43 pp.153-158 |
| AP, MW (Joint) |
2011-03-04 09:25 |
Ibaraki | Ibaraki Univ. | Outdoor/Indoor Propagation Experiment for Interference Estimation in Satellite/Terrestrial Integrated Mobile Communication System
-- Evaluation Using Cellular Phone, CW Transmitter and Pseudo Satellite -- Amane Miura, Hiroshi Watanabe, Naokazu Hamamoto, Hiroyuki Tsuji, Yoshiyuki Fujino, Ryutaro Suzuki (NICT) AP2010-187 |
[more] | AP2010-187 pp.83-88 |
| SANE, SAT (Joint) |
2011-02-25 14:30 |
Hyogo | NICT Kobe Research Laboratories | A mobile phone output power measurement in low population density region for interference etimation of satellite/terrestrial integrated mobile communication system Hiroshi Watanabe, Amane Miura, Naokazu Hamamoto, Yoshiyuki Fujino, Ryutaro Suzuki (NICT) SAT2010-90 |
The National Institute of Information and Communications Technology (NICT) has been studying "Satellite/Terrestrial Inte... [more] | SAT2010-90 pp.85-90 |
| SANE | 2010-10-27 18:00 |
Overseas | Ramada Hotel, Jeju-do, Korea | Measurement Experiment of Interference From Mobile Terminals and Base Stations Using an Airship Hiroyuki Tsuji, Amane Miura, Yoshiyuki Fujino, Naokazu Hamamoto, Ryutaro Suzuki (NICT) SANE2010-89 |
The interference from terrestrial base-stations or mobile terminals to satellite systems is one of the important issues ... [more] | SANE2010-89 pp.123-127 |
| AP, MW (Joint) |
2010-09-09 14:55 |
Tokyo | Tokyo Inst. tech. | A Fundamental Experiment of Outdoor/Indoor Propagation for Interference Estimation in Satellite/Terrestrial Integrated Mobile Communication System
-- Evaluation Using Cellular Phone and Pseudo Satellite -- Amane Miura, Hiroshi Watanabe, Naokazu Hamamoto, Hiroyuki Tsuji, Yoshiyuki Fujino, Ryutaro Suzuki (NICT) AP2010-70 |
[more] | AP2010-70 pp.17-22 |
| SAT, RCS (Joint) |
2010-08-27 10:50 |
Kagoshima | Kagoshima Univ. | Excitation Condition of Array-Fed Reflector Antennas for 100-Beam-Class Multibeam Communications Satellite Yoshiyuki Fujino, Naokazu Hamamoto, Amane Miura, Teruaki Orikasa, Ryutaro Suzuki (NICT), Shin-ichi Yamamoto, Yoshio Inasawa, Izuru Naito, Masahiko Funada, Naoyuki Natori (Mitsubishi Electric Corp.) SAT2010-36 |
Mobile satellite communications systems using 100-beam-class multibeam on-board antenna have been proposed and some of t... [more] | SAT2010-36 pp.41-46 |
| EMT, OPE, MW, IEE-EMT [detail] | 2010-07-29 09:45 |
Hokkaido | Hokkaido Univ. | Research and Development of Scanning Variable Spot Beam Antenna Using Optically Controlled Beam Forming Network
-- Adaptive Satellite Communications System to improve Ka-band Availability -- Akira Akaishi, Ryutaro Suzuki, Yoshiyuki Fujino, Yozo Shoji (NICT), Tomohiro Akiyama, Takehito Iguchi (Mitsubishi Electric Corp.) MW2010-38 OPE2010-23 |
For the improvement of the communications operating ratio due to the Ka-band rain attenuation， we propose an adaptive sa... [more] | MW2010-38 OPE2010-23 pp.7-12 |
| EMT, OPE, MW, IEE-EMT [detail] | 2010-07-29 10:10 |
Hokkaido | Hokkaido Univ. | Multiple-Beam Optically Controlled Beamformer Using Spatial Light Modulators Tomohiro Akiyama, Hirofumi Matsuzawa, Hideo Sumiyoshi, Takehito Iguchi (Mitsubishi Electric Corp.), Yozo Shoji, Akira Akaishi, Yoshiyuki Fujino, Ryutaro Suzuki (NICT) MW2010-39 OPE2010-24 |
We propose an optically controlled multiple-beam phased array antenna employing spatial light modulators. We have devel... [more] |
MW2010-39 OPE2010-24 pp.13-18 |
| AP, SAT (Joint) |
2010-07-22 09:25 |
Hokkaido | Kitami Inst. Tech. | Research and Development of Scanning Variable Spot Beam Antenna for Adaptive Satellite Communications
-- Adaptive Communications System to improve Ka-band operating ratio -- Akira Akaishi, Ryutaro Suzuki, Yoshiyuki Fujino, Yozo Shoji (NICT), Hideo Sumiyoshi, Hirofumi Matsuzawa (Mitsubishi Electric Corp.) SAT2010-12 |
For the improvement of the communications operating ratio due to the Ka-band rain attenuation， we propose an adaptive sa... [more] | SAT2010-12 pp.7-12 |
| AP, SAT (Joint) |
2010-07-22 09:50 |
Hokkaido | Kitami Inst. Tech. | Development of Optically Controlled Beam Forming Network for Variable Spot Scanning Antenna Hirofumi Matsuzawa, Tomohiro Akiyama, Hideo Sumiyoshi, Takehito Iguchi, Masateru Nagase (Mitsubishi Electric Corp.), Yozo Shoji, Yoshiyuki Fujino, Akira Akaishi, Ryutaro Suzuki (NICT) SAT2010-13 |
We proposed and developed the prototype of the OBFN that possesses a capacity of amplitude and phase of 2 optical beams ... [more] | SAT2010-13 pp.13-18 |
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