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Paper Abstract and Keywords
Presentation 2023-07-21 13:30
A study on improvement of electromagnetic wave absorbing and shielding of CNTs painted on the sheet materials
Chiaki Kaneko, Kishio Hidaka (Yamagata Univ.), Junji Nemoto (Hokuetsu Corp.) EMCJ2023-31
Abstract (in Japanese) (See Japanese page) 
(in English) We aimed improvement of the performance of electromagnetic wave absorption and noise suppression for near field and far field we evaluated and analyzed electromagnetic wave absorption performance of the sheet materials based on paper with Carbon nanotubes. The sheets were coated by Carbon nanotubes paste. The measurement method was reflection (S11) and transmission (S21) using a coaxial tube , and relative permittivity was measured by the NIST Precision. As for the near-field, Rtp was evaluated from the S11 and S21 measurements by the microstrip line. As a result, the electromagnetic wave absorption performance reached 20dB in the frequency band from 10 GHz to 20 GHz, indicated that is validity to effective for noise suppression.
Keyword (in Japanese) (See Japanese page) 
(in English) Absorption and shielding effect / Coaxial waveguide / Microstrip line / Carbon nanotube / Dielectric constant / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 125, EMCJ2023-31, pp. 13-16, July 2023.
Paper # EMCJ2023-31 
Date of Issue 2023-07-14 (EMCJ) 
ISSN Online edition: ISSN 2432-6380
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 WPT EMCJ EMD  
Conference Date 2023-07-21 - 2023-07-21 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To EMCJ 
Conference Code 2023-07-WPT-EMCJ-EMD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A study on improvement of electromagnetic wave absorbing and shielding of CNTs painted on the sheet materials 
Sub Title (in English)  
Keyword(1) Absorption and shielding effect  
Keyword(2) Coaxial waveguide  
Keyword(3) Microstrip line  
Keyword(4) Carbon nanotube  
Keyword(5) Dielectric constant  
1st Author's Name Chiaki Kaneko  
1st Author's Affiliation Yamagata University (Yamagata Univ.)
2nd Author's Name Kishio Hidaka  
2nd Author's Affiliation Yamagata University (Yamagata Univ.)
3rd Author's Name Junji Nemoto  
3rd Author's Affiliation Hokuetsu Corporation (Hokuetsu Corp.)
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Speaker Author-1 
Date Time 2023-07-21 13:30:00 
Presentation Time 25 minutes 
Registration for EMCJ 
Paper # EMCJ2023-31 
Volume (vol) vol.123 
Number (no) no.125 
Page pp.13-16 
Date of Issue 2023-07-14 (EMCJ) 

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