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Paper Abstract and Keywords
Presentation 2020-09-25 09:25
A Study on Reduction of Electromagnetic Coupling between Symmetric Antennas Using Even-odd Mode Analysis
Hiroshi Sato (panasonic), Phung Quang Quan (NDA), Kazuhiro Eguchi, Yoshio Koyanagi (panasonic), Hisashi Morishita (NDA) AP2020-60
Abstract (in Japanese) (See Japanese page) 
(in English) In recent information terminals, MIMO technology that uses multiple antennas is often used for stable communication of large amounts of data. Since information terminals are required to be miniaturized, we want to place multiple antennas close to each other in the terminal and minimize the volume required for the antennas without using additional parts as much as possible. However, in this case, strong electromagnetic coupling occurs between the antennas, and the desired communication distance and communication capacity cannot be obtained.
This report presents a design method for reducing coupling between two antennas with the goal of not using lumped constant components. First, a known MIMO antenna in which the antennas are connected by a bridge line is analyzed in even-odd modes to establish a design method. Next, using the proposed method, the coupling between two element mono-poles is reduced without a bridge line connection between antennas, and the matching circuit is not used by devising the antenna shape. It showed effectiveness.
Keyword (in Japanese) (See Japanese page) 
(in English) Antenna / MIMO / Coupling / even-odd mode / / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 171, AP2020-60, pp. 121-126, Sept. 2020.
Paper # AP2020-60 
Date of Issue 2020-09-17 (AP) 
ISSN Online edition: ISSN 2432-6380
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 MW AP  
Conference Date 2020-09-24 - 2020-09-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave, Millimeter wave, Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2020-09-MW-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Reduction of Electromagnetic Coupling between Symmetric Antennas Using Even-odd Mode Analysis 
Sub Title (in English)  
Keyword(1) Antenna  
Keyword(2) MIMO  
Keyword(3) Coupling  
Keyword(4) even-odd mode  
1st Author's Name Hiroshi Sato  
1st Author's Affiliation panasonic (panasonic)
2nd Author's Name Phung Quang Quan  
2nd Author's Affiliation National Defense Academy (NDA)
3rd Author's Name Kazuhiro Eguchi  
3rd Author's Affiliation panasonic (panasonic)
4th Author's Name Yoshio Koyanagi  
4th Author's Affiliation panasonic (panasonic)
5th Author's Name Hisashi Morishita  
5th Author's Affiliation National Defense Academy (NDA)
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Speaker Author-1 
Date Time 2020-09-25 09:25:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2020-60 
Volume (vol) vol.120 
Number (no) no.171 
Page pp.121-126 
Date of Issue 2020-09-17 (AP) 

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