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Paper Abstract and Keywords
Presentation 2026-08-27 11:50
Multi-Beam Control for Enhanced Communication Efficiency in a Low Earth Orbit Satellite Communication System Equipped with a Reconfigurable Reflectarray Antenna
Masaki Saito, Takanori Hara, Hiroaki Hashida, Yuichi Kawamoto, Nei Kato (Tohoku Univ.), Kohei Yoshida (NEC), Masayuki Ariyoshi (NEC/Tohoku Univ.) SAT2026-36
Abstract (in Japanese) (See Japanese page) 
(in English) Reconfigurable reflectarray antennas (RRA), which enable dynamic control of the phase shifts of the Reflectarray (RA) elements, have attracted attention. However, conventional beam control based solely on the phase shifts of the RA elements has difficulty simultaneously providing sufficient beam gains to users located in diverse directions. To address this issue, this paper proposes a multibeam control scheme that controls not only the phase shifts of the RA elements but also the angle of incidence by repositioning the feed antennas. Performance evaluation demonstrates that the proposed scheme improves the average system throughput under certain link-capacity conditions.
Keyword (in Japanese) (See Japanese page) 
(in English) Reconfigurable Reflectarray Antenna / multibeam control / feed displacement / LEO satellite communication / / / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 158, SAT2026-36, pp. 11-16, Aug. 2026.
Paper # SAT2026-36 
Date of Issue 2026-08-20 (SAT) 
ISSN 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 SAT2026-36

Conference Information
Committee SAT RCS  
Conference Date 2026-08-27 - 2026-08-28 
Place (in Japanese) (See Japanese page) 
Place (in English) BENEX Nagasaki Brick Hall 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Satellite Communications, Broadcasting, Forward Error Correction, Wireless Communications, etc. 
Paper Information
Registration To SAT 
Conference Code 2026-08-SAT-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Multi-Beam Control for Enhanced Communication Efficiency in a Low Earth Orbit Satellite Communication System Equipped with a Reconfigurable Reflectarray Antenna 
Sub Title (in English)  
Keyword(1) Reconfigurable Reflectarray Antenna  
Keyword(2) multibeam control  
Keyword(3) feed displacement  
Keyword(4) LEO satellite communication  
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1st Author's Name Masaki Saito  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Takanori Hara  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Hiroaki Hashida  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
4th Author's Name Yuichi Kawamoto  
4th Author's Affiliation Tohoku University (Tohoku Univ.)
5th Author's Name Nei Kato  
5th Author's Affiliation Tohoku University (Tohoku Univ.)
6th Author's Name Kohei Yoshida  
6th Author's Affiliation NEC Corporation (NEC)
7th Author's Name Masayuki Ariyoshi  
7th Author's Affiliation NEC Corporation/Tohoku University (NEC/Tohoku Univ.)
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Speaker Author-1 
Date Time 2026-08-27 11:50:00 
Presentation Time 25 minutes 
Registration for SAT 
Paper # SAT2026-36 
Volume (vol) vol.126 
Number (no) no.158 
Page pp.11-16 
#Pages 6 
Date of Issue 2026-08-20 (SAT) 

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