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Paper Abstract and Keywords
Presentation 2010-08-27 10:50
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
Abstract (in Japanese) (See Japanese page) 
(in English) Mobile satellite communications systems using 100-beam-class multibeam on-board antenna have been proposed and some of them are already in operation. Such systems can concentrate the resource, such as bandwidth, power, etc., on a specific beam. Therefore, these are effective for emergency operation under natural disaster. For such kind of the on-board antennas, size and power consumption are important to install the antenna in the satellite. In this paper, we study a tradeoff on the excitation condition of the on-board antenna from the view point of size and power consumption. For that purpose, the size is evaluated by the element number of the feed-array. The power consumption is evaluated by that of high power amplifiers (HPAs) connected with the elements, because the power consumption of HPAs dominates that of the satellite payload. In the case of variable amplitude excitation of feed array, the HPAs of some types of output power are necessary. The power consumption of the HPAs can be reduced compared with the case of uniform amplitude excitation.
Keyword (in Japanese) (See Japanese page) 
(in English) Multibeam / On-board Antenna / Array-fed Reflector Antenna / Feed Array / Power Consumption / High Power Amplifier / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 174, SAT2010-36, pp. 41-46, Aug. 2010.
Paper # SAT2010-36 
Date of Issue 2010-08-19 (SAT) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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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Conference Information
Committee SAT RCS  
Conference Date 2010-08-26 - 2010-08-27 
Place (in Japanese) (See Japanese page) 
Place (in English) Kagoshima Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SAT 
Conference Code 2010-08-SAT-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Excitation Condition of Array-Fed Reflector Antennas for 100-Beam-Class Multibeam Communications Satellite 
Sub Title (in English)  
Keyword(1) Multibeam  
Keyword(2) On-board Antenna  
Keyword(3) Array-fed Reflector Antenna  
Keyword(4) Feed Array  
Keyword(5) Power Consumption  
Keyword(6) High Power Amplifier  
Keyword(7)  
Keyword(8)  
1st Author's Name Yoshiyuki Fujino  
1st Author's Affiliation National Institute of Information and Communications Technology (NICT)
2nd Author's Name Naokazu Hamamoto  
2nd Author's Affiliation National Institute of Information and Communications Technology (NICT)
3rd Author's Name Amane Miura  
3rd Author's Affiliation National Institute of Information and Communications Technology (NICT)
4th Author's Name Teruaki Orikasa  
4th Author's Affiliation National Institute of Information and Communications Technology (NICT)
5th Author's Name Ryutaro Suzuki  
5th Author's Affiliation National Institute of Information and Communications Technology (NICT)
6th Author's Name Shin-ichi Yamamoto  
6th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric Corp.)
7th Author's Name Yoshio Inasawa  
7th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric Corp.)
8th Author's Name Izuru Naito  
8th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric Corp.)
9th Author's Name Masahiko Funada  
9th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric Corp.)
10th Author's Name Naoyuki Natori  
10th Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric Corp.)
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Speaker Author-5 
Date Time 2010-08-27 10:50:00 
Presentation Time 20 minutes 
Registration for SAT 
Paper # SAT2010-36 
Volume (vol) vol.110 
Number (no) no.174 
Page pp.41-46 
#Pages
Date of Issue 2010-08-19 (SAT) 


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