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| Presentation | 2015-02-18 15:50 [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 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | A high-speed downlink communication system is required to meet various applications for nano/small satellites. Therefore, it is essential to implement a transmitter with small weight and power in such satellites. We have developed high speed communication system over 300 Mbps for small satellite. In order to reduce DC power consumption of transmitter, we have developed GaN-HEMT power amplifier for X band downlink. The Hodoyoshi-4 satellite equipped with the developed communication system was launched in 2014 and we demonstrated 348 Mbps downlink from 50-kg class satellite. This paper describes the summary of the developed system, the experiment of high speed downlink, and future works. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | small satellite / satellite communication / X band / GaN / 16QAM / 64APSK / / | |
| Reference Info. | IEICE Tech. Rep., vol. 114, no. 448, SANE2014-132, pp. 25-30, Feb. 2015. | |
| Paper # | SANE2014-132 | |
| Date of Issue | 2015-02-11 (SANE, SAT) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | SANE2014-132 SAT2014-58 |
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| Conference Information | |
| Committee | SANE SAT |
| Conference Date | 2015-02-18 - 2015-02-19 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Okinawaken Shichoson Jichikaikan |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Satellite application and general |
| Paper Information | |
| Registration To | SANE |
| Conference Code | 2015-02-SANE-SAT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | On-Orbit Demonstration of the X-band 348 Mbps Communication System for the Nano Satellite: Hodoyoshi-4 |
| Sub Title (in English) | |
| Keyword(1) | small satellite |
| Keyword(2) | satellite communication |
| Keyword(3) | X band |
| Keyword(4) | GaN |
| Keyword(5) | 16QAM |
| Keyword(6) | 64APSK |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Tomoya Fukami |
| 1st Author's Affiliation | The University of Tokyo (UTokyo) |
| 2nd Author's Name | Hiromi Watanabe |
| 2nd Author's Affiliation | The University of Tokyo (UTokyo) |
| 3rd Author's Name | Atsushi Tomiki |
| 3rd Author's Affiliation | Japan Aerospace Exploration Agency (JAXA) |
| 4th Author's Name | Takahide Mizuno |
| 4th Author's Affiliation | Japan Aerospace Exploration Agency (JAXA) |
| 5th Author's Name | Hirobumi Saito |
| 5th Author's Affiliation | Japan Aerospace Exploration Agency (JAXA) |
| 6th Author's Name | Naohiko Iwakiri |
| 6th Author's Affiliation | National Institute of Information and Communication (NICT) |
| 7th Author's Name | Takahiro Shinke |
| 7th Author's Affiliation | Addnics (Addnics) |
| 8th Author's Name | Kaname Kojima |
| 8th Author's Affiliation | Addnics (Addnics) |
| 9th Author's Name | Koichi Kawamoto |
| 9th Author's Affiliation | Kawamoto (Kawamoto) |
| 10th Author's Name | Osamu Shigeta |
| 10th Author's Affiliation | AI Electronics (AI Electronics) |
| 11th Author's Name | Hitoshi Nunomura |
| 11th Author's Affiliation | AI Electronics (AI Electronics) |
| 12th Author's Name | Yasuaki Kanda |
| 12th Author's Affiliation | Antenna Giken (Antenna Giken) |
| 13th Author's Name | |
| 13th Author's Affiliation | () |
| 14th Author's Name | |
| 14th Author's Affiliation | () |
| 15th Author's Name | |
| 15th Author's Affiliation | () |
| 16th Author's Name | |
| 16th Author's Affiliation | () |
| 17th Author's Name | |
| 17th Author's Affiliation | () |
| 18th Author's Name | |
| 18th Author's Affiliation | () |
| Speaker | Author-1 |
| Date Time | 2015-02-18 15:50:00 |
| Presentation Time | 50 minutes |
| Registration for | SANE |
| Paper # | SANE2014-132, SAT2014-58 |
| Volume (vol) | vol.114 |
| Number (no) | no.448(SANE), no.449(SAT) |
| Page | pp.25-30(SANE), pp.43-48(SAT) |
| #Pages | 6 |
| Date of Issue | 2015-02-11 (SANE, SAT) |
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