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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| EST, MWP, OPE, MW, EMT, IEE-EMT [detail] | 2013-07-18 15:10 |
Hokkaido | Wakkanai Synthesis Cultural Center | High phase stabilized RF signal distribution over optical fiber based on optical heterodyne detection Eisuke Haraguchi, Hirofumi Matsuzawa, Tomohiro Akiyama, Toshiyuki Ando, Yoshihito Hirano (Mitsubishi Electric), Ryo Miyamura (Mitsubishi ElectricTokki System Corp.), Hirokazu Maesaka, Takashi Ohshima, Shinichi Matsubara, Yuji Otake (RIKEN)  MW2013-70 OPE2013-39 EST2013-34 MWP2013-29 |
[more] | MW2013-70 OPE2013-39 EST2013-34 MWP2013-29 pp.137-142 |
| MWP, OPE, MW, EMT, EST, IEE-EMT [detail] | 2012-07-27 09:25 |
Hokkaido | Hokkaido Univ. | Phase stabilized RF reference signal dissemination over optical fiber employing instantaneous frequency control by VCO Tomohiro Akiyama, Hirofumi Matsuzawa, Toshiyuki Ando, Yoshihito Hirano (Mitsubishi Electric Corp.) MW2012-58 OPE2012-51 EST2012-40 MWP2012-39 |
Stable microwave reference signal transfer systems are required in communication systems, very long baseline interferome... [more] | MW2012-58 OPE2012-51 EST2012-40 MWP2012-39 pp.191-196 |
| MWP, OPE, MW, EMT, EST, IEE-EMT [detail] | 2012-07-27 09:50 |
Hokkaido | Hokkaido Univ. | Phase stabilized RF signal distribution over optical fiber with fiber length stabilized based on Differential Optical Heterodyning Technique Eisuke Haraguchi, Hirofumi Matsuzawa, Tomohiro Akiyama, Toshiyuki Ando (Mitsubishi Electric Corp.), Ryo Miyamura (Mitsubishi Electric Tokki System Corp.), Yoshihito Hirano (Mitsubishi Electric Corp.) MW2012-59 OPE2012-52 EST2012-41 MWP2012-40 |
[more] | MW2012-59 OPE2012-52 EST2012-41 MWP2012-40 pp.197-202 |
| 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) |
2011-07-15 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 |
| 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 |
| OPE, EMT, MW | 2009-07-30 13:50 |
Hokkaido | Asahikawa Civic Culture Hall | Multiple-Beam Optically Controlled Beamformer Using Spatial-and-Wavelength Multiplexing Tomohiro Akiyama, Hirofumi Matsuzawa, Kiyohide Sakai, Yoshihito Hirano (Mitsubishi Electric Corp.) MW2009-36 OPE2009-36 |
We propose an optically controlled multiple-beam phased array antenna employing spatial and wavelength multiplexing.We h... [more] | MW2009-36 OPE2009-36 pp.35-40 |
| RCS, AN, MoNA, SR, WBS (Joint) |
2008-03-06 14:55 |
Kanagawa | YRP | Improvement of BER Performance in OFDM Systems with PAPR Reduction Hirofumi Matsuzawa, Hisato Iwai, Hideichi Sasaoka (Doshisha Univ.) RCS2007-223 |
A major drawback of orthogonal frequency division multiplexing (OFDM) systems has traditionally been their high peak-to-... [more] | RCS2007-223 pp.223-228 |
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