Information: Join today and make your research activities more affordable! Technical workshop participation fees and annual registration fees are available at member rates.
Notice: [Important] Announcement of Changes to Registration Fee Payment and Manuscript Upload Procedures for IEICE Technical Meetings
IEICE Technical Committee Submission System
Conference Paper's Information		 Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2025-01-24 10:10
Configuration and Design of 4-beam Switch Matrix Using Couplers With Smaller Coupling Ratio
Boyu Zhang, Shengjia Wu, Jiro Hirokawa, Takashi Tomura (Science Tokyo), Nelson J. G. Fonseca (Anywaves) AP2024-180
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes the configuration of an one-dimensional four-beam switching matrix utilizing directional couplers with smaller coupling ratios. By adopting directional couplers with smaller coupling ratios without using crossovers in the conventional configuration, the overall performance is improved. The design minimizes the total length of the matrix and avoids imbalance between the outputs. The structure employs directional couplers based on post-wall waveguide structure on a PTFE substrate and symmetrically arranged phase shifters. The designed results demonstrate that one of the proposed configurations exhibits particularly low reflection characteristics in the low-frequency range compared to the conventional configuration, confirming enhancements in bandwidth and overall performance.
Keyword (in Japanese) (See Japanese page) 
(in English) beam switching matrix / directional coupler / Butler matrix / Nolen matrix / / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 341, AP2024-180, pp. 70-73, Jan. 2025.
Paper # AP2024-180 
Date of Issue 2025-01-16 (AP) 
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 AP2024-180

Conference Information
Committee AP WPT  
Conference Date 2025-01-23 - 2025-01-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Rokan, Matsue 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Radio propagation, Wireless transmission technology, Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2025-01-AP-WPT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Configuration and Design of 4-beam Switch Matrix Using Couplers With Smaller Coupling Ratio 
Sub Title (in English)  
Keyword(1) beam switching matrix  
Keyword(2) directional coupler  
Keyword(3) Butler matrix  
Keyword(4) Nolen matrix  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Boyu Zhang  
1st Author's Affiliation Institute of Science Tokyo (Science Tokyo)
2nd Author's Name Shengjia Wu  
2nd Author's Affiliation Institute of Science Tokyo (Science Tokyo)
3rd Author's Name Jiro Hirokawa  
3rd Author's Affiliation Institute of Science Tokyo (Science Tokyo)
4th Author's Name Takashi Tomura  
4th Author's Affiliation Institute of Science Tokyo (Science Tokyo)
5th Author's Name Nelson J. G. Fonseca  
5th Author's Affiliation Anywaves (Anywaves)
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
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 ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th Author's Affiliation ()
()
Speaker Author-1 
Date Time 2025-01-24 10:10:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2024-180 
Volume (vol) vol.124 
Number (no) no.341 
Page pp.70-73 
#Pages 4 
Date of Issue 2025-01-16 (AP) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan