Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
SAT, SANE (Joint) |
2020-02-19 15:40 |
Okinawa |
|
Demonstration Experiment on 2.6 Gbps Downlink Communication from Low Earth Orbit Satellite Hirobumi Saito (JAXA), Tomoki Kaneko (Todai), Hiromi Watanabe (Keio), Noriyuki Kawano, Keishi Murakami, Yoshinori Kunii, Takahisa Tomoda (JAXA), Kei-ichi Hirako (Keio), Shinichi Nakasuka (Todai), Seiko Shirasaka (Keio) SANE2019-106 |
[more] |
SANE2019-106 pp.49-54 |
SANE |
2018-06-22 13:00 |
Ibaraki |
Tsukuba Space Center, JAXA |
X band Synthetic Aperture Radar for 100kg class small satellite
-- Result of Engineering Model -- Hirobumi Saito (JAXA), Prilando Rizki Akbar (Keio Univ.), Budhaditya Pyne (U. Tokyo), Jiro Hirokawa (Tokyo Techn.), Koji Tanaka, Koichi Ijichi (JAXA), Hiromi Watanabe (Keio Univ.), Makoto Mita (JAXA), Tomoki Kaneko (U. Tokyo) SANE2018-13 |
[more] |
SANE2018-13 pp.1-6 |
SANE |
2018-06-22 13:25 |
Ibaraki |
Tsukuba Space Center, JAXA |
1000W X-band microwave GaN solid state power amplifier for small SAR satellite Hiromi Watanabe (Keio Univ.), Koji Tanaka, Ijichi Koichi, Hirobumi Saito (JAXA), Seiko Shirasaka (Keio Univ.) SANE2018-14 |
[more] |
SANE2018-14 pp.7-12 |
SAT, SANE (Joint) |
2016-02-16 14:35 |
Hiroshima |
Hiroshima Institute of Technology |
High Power transmitter for X band SAR system on Small satellite Hiromi Watanabe (UT), Hirobumi Saito (JAXA) SANE2015-109 |
We are now developing subsystems in order to put our X-band Synthetic Aperture Radar system for 100kg class small satell... [more] |
SANE2015-109 pp.13-18 |
SAT, SANE (Joint) |
2016-02-16 15:00 |
Hiroshima |
Hiroshima Institute of Technology |
Evaluation of Nonlinear Phase Distortion in X-band GaAs and GaN Power Amplifiers for Small Satellite Communication and its Effect to Multi-level Modulation Masafmi Morimoto, Tomoya Fukami, Hiromi Watanabe (UTokyo), Hirobumi Saito (JAXA) SANE2015-110 |
In this paper, in order to understand AM-PM characteristics, we simulated AM-PM using equivalent circuit of FET. In addi... [more] |
SANE2015-110 pp.19-24 |
SAT, SANE (Joint) |
2016-02-16 15:25 |
Hiroshima |
Hiroshima Institute of Technology |
The Experiments of 505 Mbps Downlink Communication from the 50 kg Class Satellite using 64APSK and Future Plans Tomoya Fukami, Hiromi Watanabe (UTokyo), Atsushi Tomiki, Takahide Mizuno, Hirobumi Saito (JAXA), Naohiko Iwakiri (NICT), Takahiro Shinke, Kaname Kojima (Addnics), Koichi Kawamoto (Kawamoto), Osamu Shigeta, Hitoshi Nunomura (AI Electronics), Yasuaki Kanda (Antenna Giken) SANE2015-111 |
A high-speed downlink communication system is required to meet various applications for nano/small satellites. Therefore... [more] |
SANE2015-111 pp.25-30 |
SANE, SAT (Joint) |
2015-02-18 15:50 |
Okinawa |
Okinawaken Shichoson Jichikaikan |
[Special Talk]
On-Orbit Demonstration of the X-band 348 Mbps Communication System for the Nano Satellite: Hodoyoshi-4 Tomoya Fukami, Hiromi Watanabe (UTokyo), Atsushi Tomiki, Takahide Mizuno, Hirobumi Saito (JAXA), Naohiko Iwakiri (NICT), Takahiro Shinke, Kaname Kojima (Addnics), Koichi Kawamoto (Kawamoto), Osamu Shigeta, Hitoshi Nunomura (AI Electronics), Yasuaki Kanda (Antenna Giken) SANE2014-132 SAT2014-58 |
A high-speed downlink communication system is required to meet various applications for nano/small satellites. Therefore... [more] |
SANE2014-132 SAT2014-58 pp.25-30(SANE), pp.43-48(SAT) |
SANE |
2014-10-22 10:00 |
Overseas |
Ramada Plaza Melaka, Malacca, Malaysia |
High speed down link experiment from small satellite Hodoyoshi 4 Hirobumi Saito (JAXA), Tomoya Fukami, Hiromi Watanabe (Univ. of Tokyo), Takahide Mizuno, Atsushi Tomiki (JAXA), Naohiko Iwakiri (NICT) SANE2014-66 |
A high-speed downlink communications system is required to meet various applications for nano/small satellites. It is es... [more] |
SANE2014-66 pp.11-16 |
SAT, SANE (Joint) |
2014-02-21 10:30 |
Yamaguchi |
Hotel Kamefuku (Yamaguchi) |
Ipplication of Small satellite: High speed downlink communication system
-- High efficiency GaN-HEMT power amplifier -- Hiromi Watanabe, Tomoya Fukami (Univ. of Tokyo), Hirobumi Saito (JAXA), Naohiko Iwakiri (Univ. of Tokyo), Atsushi Tomiki (JAXA) SANE2013-137 |
[more] |
SANE2013-137 pp.31-36 |
SANE |
2013-12-03 12:05 |
Overseas |
VAST/VNSC(2nd Dec.) & Melia Hotel (3rd Dec), Hanoi, Vietnam |
Development of the X-band High Speed Downlink Transmitter for Nano Satellite Tomoya Fukami, Hiromi Watanabe (The Univ. of Tokyo), Atsushi Tomiki (JAXA), Naohiko Iwakiri (The Univ. of Tokyo), Hirobumi Saito (JAXA), Shinichi Nakasuka (Tokyo Univ.) SANE2013-102 |
Recently small satellites start playing important roles in earth observation missions. It, however, is true that small s... [more] |
SANE2013-102 pp.179-184 |
SANE |
2013-04-25 13:00 |
Nagano |
Usuda Deep Space Center, JAXA |
Evaluation of the X-band High Speed Downlink Transmitter with GaN-HEMT amplifier for Nano Satellite Tomoya Fukami, Hiromi Watanabe (Univ. of Tokyo), Atsushi Tomiki (JAXA), Naohiko Iwakiri (Univ. of Tokyo), Hirobumi Saito (JAXA), Shinichi Nakasuka (Univ. of Tokyo) SANE2013-1 |
Recently small satellites start playing important roles in earth observation missions. It, however, is true that small s... [more] |
SANE2013-1 pp.1-6 |
SANE |
2012-10-11 14:40 |
Overseas |
The SONGDO CONVENSIA, Incheon Korea |
Developments of high-efficiency GaN RF amplifier and pre-distortion technique for nano/small satellite downlink system Hiromi Watanabe, Tomoya Fukami (Univ. of Tokyo), Atsushi Tomiki, Hirobumi Saito, Naohiko Iwakiri (JAXA) SANE2012-83 |
A high-speed downlink communication system is required to meet different applications for nano/small satellites. Therefo... [more] |
SANE2012-83 pp.153-158 |
SANE |
2012-06-29 15:45 |
Ibaraki |
Tsukuba Space Center, JAXA |
Miniaturized Antennas on Small Satellites for the X-Band Downlink Communications Yasuaki Kanda (Antenna Giken), Hirobumi Saito (JAXA), Hiromi Watanabe (UT), Satoshi Kogiso, Toshiyuki Haga, Syuuishi Okuno, Masamichi Fujita (Antenna Giken) SANE2012-39 |
The miniaturized antennas for X band down-links which is due to be carried in a small satellite "Hodoyoshi" have been in... [more] |
SANE2012-39 pp.105-110 |
SANE |
2012-06-29 16:10 |
Ibaraki |
Tsukuba Space Center, JAXA |
Measurement and digital predistortion on high-efficiency GaN based power amplifier for nano/small satellite high-speed communication system Hiromi Watanabe (Tokyo University), Atsushi Tomiki (JAXA), Naohiko Iwakiri, Tomoya Fukami (Tokyo University), Hirobumi Saito (JAXA), Shinichi Nakasuka (Tokyo University) SANE2012-40 |
A high-speed downlink communication system is required to meet different applications for nano/small satellites.
Theref... [more] |
SANE2012-40 pp.111-116 |