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Paper Abstract and Keywords
Presentation 2025-11-13 13:50
Fast-Switching Phase Shifter Using Digital Quadrature Splitter for Continuous Beamforming
Asaka Kobayashi, Ren Imanishi, Nosaka Hideyuki (Ritsumeikan Univ.) MW2025-160
Abstract (in Japanese) (See Japanese page) 
(in English) The use of phased array antennas is being considered to extend propagation distances for Beyond 5G/6G. Furthermore, research is advancing on high-functionality features such as continuous beamforming. This paper proposes a high-speed switchable phase shifter using a digital quadrature splitter. By employing a digital quadrature splitter, the circuit configuration reduces the power consumption while maintaining high-speed phase switching. Operation was verified using a 5-GHz continuous wave, confirming 360° phase shifting capability without requiring digital calibration. The control characteristics exhibit high linearity, achieving the RMS phase error of 7.6°, and a phase switching time of only 100ns.
Keyword (in Japanese) (See Japanese page) 
(in English) Vector sum phase shifter / Phased array antenna / Continuous beamforming / / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 247, MW2025-160, pp. 23-27, Nov. 2025.
Paper # MW2025-160 
Date of Issue 2025-11-06 (MW) 
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 MW2025-160

Conference Information
Committee MW  
Conference Date 2025-11-13 - 2025-11-14 
Place (in Japanese) (See Japanese page) 
Place (in English) PRICIA RESORT YORON 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave, etc. 
Paper Information
Registration To MW 
Conference Code 2025-11-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Fast-Switching Phase Shifter Using Digital Quadrature Splitter for Continuous Beamforming 
Sub Title (in English)  
Keyword(1) Vector sum phase shifter  
Keyword(2) Phased array antenna  
Keyword(3) Continuous beamforming  
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1st Author's Name Asaka Kobayashi  
1st Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
2nd Author's Name Ren Imanishi  
2nd Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
3rd Author's Name Nosaka Hideyuki  
3rd Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
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Speaker Author-1 
Date Time 2025-11-13 13:50:00 
Presentation Time 25 minutes 
Registration for MW 
Paper # MW2025-160 
Volume (vol) vol.125 
Number (no) no.247 
Page pp.23-27 
#Pages 5 
Date of Issue 2025-11-06 (MW) 

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