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Paper Abstract and Keywords
Presentation 2024-12-13 14:35
Extraction of difference in parasitic impedance of common mode choke mounted on different printed circuit boards
Yoshika Iwaoka, Yusuke Yano, Jianqing Wang (NIT) EMCJ2024-89
Abstract (in Japanese) (See Japanese page) 
(in English) The increasing multifunctionality of automobiles has led to greater complexity in the circuits and communication systems within in-vehicle devices. This has resulted in an increased risk of unwanted electromagnetic emissions from electronic devices and potential malfunctions of in-vehicle systems due to external electromagnetic interference. Consequently, the need for high-precision S-parameter characterization of electronic components used for noise suppression has become more critical. To measure the S-parameter characteristics of noise suppression components, test fixture boards are required. However, variations in parasitic components may arise due to factors such as the substrate structure, pads used for component mounting, and the influence of soldering during assembly. Therefore, this study focuses on the common mode choke (CMC) as a representative noise suppression component and explores methods to improve the measurement accuracy of its S-parameters by extracting the differences in parasitic components between devices mounted on different substrates. Specifically, the study employs the optimization feature of circuit simulation software, Simulated Annealing (SA), to attempt the extraction of these differences across different substrates. The results demonstrate that it is possible to accurately estimate parasitic components, including the determination of which substrate the parasitic components are associated with.
Keyword (in Japanese) (See Japanese page) 
(in English) Common mode choke / parasitic impedance / Simulated Annealing / / / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 304, EMCJ2024-89, pp. 1-6, Dec. 2024.
Paper # EMCJ2024-89 
Date of Issue 2024-12-06 (EMCJ) 
ISSN Online edition: ISSN 2432-6380
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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 EMCJ IEE-EMC  
Conference Date 2024-12-13 - 2024-12-13 
Place (in Japanese) (See Japanese page) 
Place (in English) NIFS 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMCJ 
Conference Code 2024-12-EMCJ-EMC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Extraction of difference in parasitic impedance of common mode choke mounted on different printed circuit boards 
Sub Title (in English)  
Keyword(1) Common mode choke  
Keyword(2) parasitic impedance  
Keyword(3) Simulated Annealing  
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1st Author's Name Yoshika Iwaoka  
1st Author's Affiliation Nagoya Institute of Technology (NIT)
2nd Author's Name Yusuke Yano  
2nd Author's Affiliation Nagoya Institute of Technology (NIT)
3rd Author's Name Jianqing Wang  
3rd Author's Affiliation Nagoya Institute of Technology (NIT)
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Speaker Author-1 
Date Time 2024-12-13 14:35:00 
Presentation Time 25 minutes 
Registration for EMCJ 
Paper # EMCJ2024-89 
Volume (vol) vol.124 
Number (no) no.304 
Page pp.1-6 
#Pages
Date of Issue 2024-12-06 (EMCJ) 


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