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Paper Abstract and Keywords
Presentation 2025-03-14 15:10
Shielding Characteristics Evaluation of Automotive High Voltage Harnesses Based on the Triaxial Method
Fumiya Muto (KIT), Tatsuki Kashihara (SANDEN), Tohlu Matsushima, Yuki Fukumoto (KIT), Koji Kobayashi (SANDEN) EMCJ2024-110
Abstract (in Japanese) (See Japanese page) 
(in English) When evaluating radiated emissions, the shielding characteristic of cable used for power supply and wired communication are crucial.~Triple coaxial method is known as a method to measure the shielding characteristic.~The triple coaxial method can measure the ratio of signal injected into the cable and the signal leaked from the shield to the outside of the cable,~as described in the IEC62153-4 series.~This signal ratio is defined as the shielding characteristic of the cable to be measured.~In this study,~the shielding characteristics of automotive high-voltage cables connecting the battery and power equipment were evaluated using the triple coaxial method.~The conducted noise emitted by power equipment is significant not only in common mode but also in differential mode.~Therefore,~in addition to the shielding characteristic for common mode injection that can be evaluated by the conventional triple coaxial method.~A method for simultaneously measuring the shielding characteristics under common-mode and differential-mode injection was proposed.~Furthermore,~a jig was developed to evaluate this method to measure the differential-mode shielding characteristics as well.~In order to verify the measurement accuracy of the developed jig.~Measurements using three types of jigs with different lengths were compared to determine the signal leakage per unit length of the cable.~In addition,~the shielding characteristics of each of the common mode and differential mode were evaluated.
Keyword (in Japanese) (See Japanese page) 
(in English) Triaxial method / Shield characteristics / HV harness / mixed mode S parameter / / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 436, EMCJ2024-110, pp. 36-41, March 2025.
Paper # EMCJ2024-110 
Date of Issue 2025-03-07 (EMCJ) 
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)
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Conference Information
Committee EMCJ MICT  
Conference Date 2025-03-14 - 2025-03-14 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMCJ 
Conference Code 2025-03-EMCJ-MICT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Shielding Characteristics Evaluation of Automotive High Voltage Harnesses Based on the Triaxial Method 
Sub Title (in English)  
Keyword(1) Triaxial method  
Keyword(2) Shield characteristics  
Keyword(3) HV harness  
Keyword(4) mixed mode S parameter  
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1st Author's Name Fumiya Muto  
1st Author's Affiliation Kyushu Institute of Technology (KIT)
2nd Author's Name Tatsuki Kashihara  
2nd Author's Affiliation SANDEN CORPORATION (SANDEN)
3rd Author's Name Tohlu Matsushima  
3rd Author's Affiliation Kyushu Institute of Technology (KIT)
4th Author's Name Yuki Fukumoto  
4th Author's Affiliation Kyushu Institute of Technology (KIT)
5th Author's Name Koji Kobayashi  
5th Author's Affiliation SANDEN CORPORATION (SANDEN)
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Speaker Author-1 
Date Time 2025-03-14 15:10:00 
Presentation Time 20 minutes 
Registration for EMCJ 
Paper # EMCJ2024-110 
Volume (vol) vol.124 
Number (no) no.436 
Page pp.36-41 
#Pages 6 
Date of Issue 2025-03-07 (EMCJ) 

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