Paper Abstract and Keywords |
Presentation |
2012-06-29 16:10
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 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
A high-speed downlink communication system is required to meet different applications for nano/small satellites.
Therefore, it is essential to implement a power- and weight-limited transmitter in such satellites. Our recent research has
focused on an efficient system with the limited transmitter incorporating a powerful ground station receiver. To overcome
signal distortion at the cost of some limitations of the transmitter, an SCCC turbo equalization system equipped with nonlineardistortion compensation techniques in the receiver has been developed. However, digital predistortion on the transmitter is known as a powerful complementary nonlinearity of power amplifier. We are developing predistortion scheme for nano satellite transmitter. We evaluate performances of the new GaN-HEMT power amplifier. The results indicate that the new PA performances are suitable for multi-level modulation high-speed downlink system with predistortion such as 16-QAM system.Therefore, the power amplifier with high efficiency can be implemented |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
nano satellite / satellite communication system / GaN power amplifier / predistortion / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 112, no. 107, SANE2012-40, pp. 111-116, June 2012. |
Paper # |
SANE2012-40 |
Date of Issue |
2012-06-21 (SANE) |
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) |
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SANE2012-40 |
Conference Information |
Committee |
SANE |
Conference Date |
2012-06-28 - 2012-06-29 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Tsukuba Space Center, JAXA |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Space applications symposium |
Paper Information |
Registration To |
SANE |
Conference Code |
2012-06-SANE |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Measurement and digital predistortion on high-efficiency GaN based power amplifier for nano/small satellite high-speed communication system |
Sub Title (in English) |
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Keyword(1) |
nano satellite |
Keyword(2) |
satellite communication system |
Keyword(3) |
GaN power amplifier |
Keyword(4) |
predistortion |
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1st Author's Name |
Hiromi Watanabe |
1st Author's Affiliation |
Tokyo University (Tokyo University) |
2nd Author's Name |
Atsushi Tomiki |
2nd Author's Affiliation |
Japan Aerospace Exploration Agency (JAXA) |
3rd Author's Name |
Naohiko Iwakiri |
3rd Author's Affiliation |
Tokyo University (Tokyo University) |
4th Author's Name |
Tomoya Fukami |
4th Author's Affiliation |
Tokyo University (Tokyo University) |
5th Author's Name |
Hirobumi Saito |
5th Author's Affiliation |
Japan Aerospace Exploration Agency (JAXA) |
6th Author's Name |
Shinichi Nakasuka |
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Tokyo University (Tokyo University) |
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Speaker |
Author-1 |
Date Time |
2012-06-29 16:10:00 |
Presentation Time |
25 minutes |
Registration for |
SANE |
Paper # |
SANE2012-40 |
Volume (vol) |
vol.112 |
Number (no) |
no.107 |
Page |
pp.111-116 |
#Pages |
6 |
Date of Issue |
2012-06-21 (SANE) |
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