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Paper Abstract and Keywords
Presentation 2007-09-21 14:25
Measurements of the Radiated Electric Field and the Common Mode Current from the In-house Broadband Power Line Communications in Residential Environment I
Masahiro Kitagawa (Osaka Univ.), Masatoshi Ohishi (NAO) EMCJ2007-49
Abstract (in Japanese) (See Japanese page) 
(in English) In Japan, in-house broadband power line communications (PLC) are regulated only in terms of the common-mode current (CMI) measured using the ISN (LCL=16dB, DMZ=100 ohm, CMZ=25 ohm). However it is scientifically not yet verified that such a regulation could control the radiated electric field (REF) at the distance of 10m below the ambient noise level.
We have investigated CMI and REF caused by the various commercial PLCs in residential environment and found that; REF could exceed the ambient by more than 30dB even if CMI satisfies the regulation, CMI could exceed the legal limit by more than 15dB even if the outlet has high LCL, no causality is found between CMI or LCL and REF, CMI along the power line could exceed that injected from the modem by more than 20dB, and, the ambient noise below 15MHz is 10dB smaller than the value assumed for the regulation. It is concluded that the regulation has serious flaw and could not control the REF below the ambient level.
Keyword (in Japanese) (See Japanese page) 
(in English) power line communications / PLC / radiated electric field / ambient noise / common-mode current / LCL / in-house /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 226, EMCJ2007-49, pp. 37-42, Sept. 2007.
Paper # EMCJ2007-49 
Date of Issue 2007-09-14 (EMCJ) 
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)
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Conference Information
Committee EMCJ  
Conference Date 2007-09-21 - 2007-09-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Doshisha University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMCJ 
Conference Code 2007-09-EMCJ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Measurements of the Radiated Electric Field and the Common Mode Current from the In-house Broadband Power Line Communications in Residential Environment I 
Sub Title (in English)  
Keyword(1) power line communications  
Keyword(2) PLC  
Keyword(3) radiated electric field  
Keyword(4) ambient noise  
Keyword(5) common-mode current  
Keyword(6) LCL  
Keyword(7) in-house  
Keyword(8)  
1st Author's Name Masahiro Kitagawa  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Masatoshi Ohishi  
2nd Author's Affiliation National Astronomical Observatory (NAO)
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Speaker Author-1 
Date Time 2007-09-21 14:25:00 
Presentation Time 25 minutes 
Registration for EMCJ 
Paper # EMCJ2007-49 
Volume (vol) vol.107 
Number (no) no.226 
Page pp.37-42 
#Pages 6 
Date of Issue 2007-09-14 (EMCJ) 

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