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Paper Abstract and Keywords
Presentation 2007-10-25 11:20
A Study on EM Radiation through Aperture of Enclosure by Internal PCB Noise Source (Part 5) -- Effect of Placement of PCB --
Shogo Miyata, Yoshiki Kayano, Hiroshi Inoue (Akita Univ.) EMCJ2007-57 MW2007-104
Abstract (in Japanese) (See Japanese page) 
(in English) Enclosure technique is widely used to suppress electromagnetic (EM) radiation from noise source and interference from electronic devices. As the aperture of the enclosure causes leakage of EM wave, desired shielding effectiveness may not be satisfied. In this paper, EM radiation from aperture of the enclosure is investigated by using the enclosure model which has a printed circuit board (PCB) as internal EM noise source. Frequency responses of magnetic-near and far-electric fields, and shielding effectiveness (SE) are discussed in order to clarify effect of placement of PCB on EM radiation. When the signal line is placed in opposite direction of the aperture, magnetic-near field, and far-electric fields for horizontal and vertical components are the smallest in that of other placement. As the distance between PCB and aperture becomes longer, shielding effectiveness increases. However, when distance is larger than certain distance which is depending on direction of PCB, EM radiation increases.
Keyword (in Japanese) (See Japanese page) 
(in English) EM Noise / Shielding Effectiveness / Enclosure / Aperture / Cavity Resonance / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 278, EMCJ2007-57, pp. 25-30, Oct. 2007.
Paper # EMCJ2007-57 
Date of Issue 2007-10-18 (EMCJ, MW) 
ISSN Print edition: ISSN 0913-5685    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 EMCJ2007-57 MW2007-104

Conference Information
Committee EMCJ MW  
Conference Date 2007-10-25 - 2007-10-26 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMCJ 
Conference Code 2007-10-EMCJ-MW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on EM Radiation through Aperture of Enclosure by Internal PCB Noise Source (Part 5) 
Sub Title (in English) Effect of Placement of PCB 
Keyword(1) EM Noise  
Keyword(2) Shielding Effectiveness  
Keyword(3) Enclosure  
Keyword(4) Aperture  
Keyword(5) Cavity Resonance  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Shogo Miyata  
1st Author's Affiliation Akita University (Akita Univ.)
2nd Author's Name Yoshiki Kayano  
2nd Author's Affiliation Akita University (Akita Univ.)
3rd Author's Name Hiroshi Inoue  
3rd Author's Affiliation Akita University (Akita Univ.)
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Speaker Author-1 
Date Time 2007-10-25 11:20:00 
Presentation Time 25 minutes 
Registration for EMCJ 
Paper # EMCJ2007-57, MW2007-104 
Volume (vol) vol.107 
Number (no) no.278(EMCJ), no.279(MW) 
Page pp.25-30 
#Pages 6 
Date of Issue 2007-10-18 (EMCJ, MW) 

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