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Paper Abstract and Keywords
Presentation 2023-10-20 15:50
Transformation of circuit equations expressed by convolutional integrals with retarded electromagnetic coupling into neutral-type delayed differential equations
Shuya Ehara, Takasi Hisakado, Mahfuzul Islam (Kyoto Univ) EMCJ2023-69 MW2023-123 EST2023-96
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, as an extension of conventional concentrated constant circuits, circuit equations are derived by considering retarded electromagnetic coupling. The inductance in the case of retardation is not a constant but varies continuously with time, so we propose a method to approximate the inductance in a staircase form in order to describe it in the circuit equation. Using this method, the circuit equation with delay is transformed into a neutral-type delay differential equation and analyzed. We explain how increasing the number of inductance partitions improves the accuracy of the analysis by using mode decomposition.
Keyword (in Japanese) (See Japanese page) 
(in English) circuit equations / retarded electromagnetic coupling / neutrl-type delayed differential equations / inductance / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 215, EMCJ2023-69, pp. 176-181, Oct. 2023.
Paper # EMCJ2023-69 
Date of Issue 2023-10-12 (EMCJ, MW, EST) 
ISSN Online edition: ISSN 2432-6380
Copyright
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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 EMCJ2023-69 MW2023-123 EST2023-96

Conference Information
Committee MW EMCJ EST IEE-EMC  
Conference Date 2023-10-19 - 2023-10-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Yamagata University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave, EM simulation, EMC, etc. 
Paper Information
Registration To EMCJ 
Conference Code 2023-10-MW-EMCJ-EST-EMC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Transformation of circuit equations expressed by convolutional integrals with retarded electromagnetic coupling into neutral-type delayed differential equations 
Sub Title (in English)  
Keyword(1) circuit equations  
Keyword(2) retarded electromagnetic coupling  
Keyword(3) neutrl-type delayed differential equations  
Keyword(4) inductance  
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1st Author's Name Shuya Ehara  
1st Author's Affiliation Kyoto University (Kyoto Univ)
2nd Author's Name Takasi Hisakado  
2nd Author's Affiliation Kyoto University (Kyoto Univ)
3rd Author's Name Mahfuzul Islam  
3rd Author's Affiliation Kyoto University (Kyoto Univ)
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Speaker Author-1 
Date Time 2023-10-20 15:50:00 
Presentation Time 20 minutes 
Registration for EMCJ 
Paper # EMCJ2023-69, MW2023-123, EST2023-96 
Volume (vol) vol.123 
Number (no) no.215(EMCJ), no.216(MW), no.217(EST) 
Page pp.176-181 
#Pages 6 
Date of Issue 2023-10-12 (EMCJ, MW, EST) 

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