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Paper Abstract and Keywords
Presentation 2023-10-20 15:30
Effect of Increased Number of Disturbance Sources on the Setting of Emission Limits -- Limit Setting Based on Field Strength Distribution of the Strongest Disturbance --
Yasushi Matsumoto, Ifong Wu, Kaoru Gotoh, Yukio Yamanaka (NICT) EMCJ2023-68 MW2023-122 EST2023-95
Abstract (in Japanese) (See Japanese page) 
(in English) The effect of the increased number of electromagnetic disturbance sources on the setting of emission limits for radio protection is studied. As in the current CISPR limit-setting model, the basic concept of radio protection from a single disturbance source is maintained, but random variations in the disturbance strength at the location, time, and frequency of radio reception are considered by using probability factors. Assuming a two-dimensional model with a uniform distribution of sources and a predefined protection (exclusion) distance from the receiver, we compared the probability distributions of received disturbance power from the nearest source with those from the strongest source. Discussions were also made on the difference in the limit values derived from the relevant distributions of received disturbance power. The results showed that the larger attenuation of disturbance other than by distance (e.g., directivity of radiation, building effects) and the larger the source density, the limit setting based on the disturbance strength from the nearest source tend to underestimate the interference risk. To reduce the risk, it is necessary to define a limit based on the estimate of the strongest disturbance strength and/or to shorten the protection distance.
Keyword (in Japanese) (See Japanese page) 
(in English) Electromagnetic disturbance / Disturbance limit / Electromagnetic interference / Emission Standard / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 215, EMCJ2023-68, pp. 170-175, Oct. 2023.
Paper # EMCJ2023-68 
Date of Issue 2023-10-12 (EMCJ, MW, EST) 
ISSN Online edition: ISSN 2432-6380
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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 EMCJ2023-68 MW2023-122 EST2023-95

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) Effect of Increased Number of Disturbance Sources on the Setting of Emission Limits 
Sub Title (in English) Limit Setting Based on Field Strength Distribution of the Strongest Disturbance 
Keyword(1) Electromagnetic disturbance  
Keyword(2) Disturbance limit  
Keyword(3) Electromagnetic interference  
Keyword(4) Emission Standard  
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1st Author's Name Yasushi Matsumoto  
1st Author's Affiliation National Institute of Information and Communications Technology (NICT)
2nd Author's Name Ifong Wu  
2nd Author's Affiliation National Institute of Information and Communications Technology (NICT)
3rd Author's Name Kaoru Gotoh  
3rd Author's Affiliation National Institute of Information and Communications Technology (NICT)
4th Author's Name Yukio Yamanaka  
4th Author's Affiliation National Institute of Information and Communications Technology (NICT)
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Speaker Author-1 
Date Time 2023-10-20 15:30:00 
Presentation Time 20 minutes 
Registration for EMCJ 
Paper # EMCJ2023-68, MW2023-122, EST2023-95 
Volume (vol) vol.123 
Number (no) no.215(EMCJ), no.216(MW), no.217(EST) 
Page pp.170-175 
#Pages 6 
Date of Issue 2023-10-12 (EMCJ, MW, EST) 

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