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Paper Abstract and Keywords
Presentation 2026-07-16 13:55
Fabrication and Evaluation of Ultra-Lightweight Electromagnetic Wave Absorbing Materials for the Low GHz Band
Kijima Eriko (Nagoya Univ.), Hidaka Kishio, Muroga Sho, Suzuki Dan (Tohoku Univ.), Tanaka Motoshi (Akita Univ.), Takahashi Shoutaro (NITech), Osato Tomoki (SoraMaterials inc.), Ueno Tomonaga (Nagoya Univ.) EMCJ2026-18
Abstract (in Japanese) (See Japanese page) 
(in English) As a measure against electromagnetic interference, this study developed an ultra-lightweight electromagnetic wave-absorbing material by applying an insulating coating to carbon nanotubes (CNTs). By adjusting the amount of insulating coating applied, the electrical conductivity can be independently controlled, making it possible to experimentally optimize impedance matching conditions in conjunction with the dielectric constant resulting from the CNT content. As a result, for an ultra-lightweight sample with a bulk density of 10 mg/cm³, absorption performance of 12 dB at 3.1 GHz for a 5-mm-thick sample and 10.7 dB at 1.4 GHz for a 10-mm-thick sample was confirmed.
Keyword (in Japanese) (See Japanese page) 
(in English) Electromagnetic wave absorber / Carbon nanotube / Relative permittivity / Conductivity / / / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 114, EMCJ2026-18, pp. 13-16, July 2026.
Paper # EMCJ2026-18 
Date of Issue 2026-07-09 (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  
Conference Date 2026-07-16 - 2026-07-16 
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 2026-07-EMCJ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Fabrication and Evaluation of Ultra-Lightweight Electromagnetic Wave Absorbing Materials for the Low GHz Band 
Sub Title (in English)  
Keyword(1) Electromagnetic wave absorber  
Keyword(2) Carbon nanotube  
Keyword(3) Relative permittivity  
Keyword(4) Conductivity  
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1st Author's Name Kijima Eriko  
1st Author's Affiliation Nagoya University (Nagoya Univ.)
2nd Author's Name Hidaka Kishio  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Muroga Sho  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
4th Author's Name Suzuki Dan  
4th Author's Affiliation Tohoku University (Tohoku Univ.)
5th Author's Name Tanaka Motoshi  
5th Author's Affiliation Akita University (Akita Univ.)
6th Author's Name Takahashi Shoutaro  
6th Author's Affiliation Nagoya Institute of Technology (NITech)
7th Author's Name Osato Tomoki  
7th Author's Affiliation SoraMaterials inc. (SoraMaterials inc.)
8th Author's Name Ueno Tomonaga  
8th Author's Affiliation Nagoya University (Nagoya Univ.)
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Speaker Author-1 
Date Time 2026-07-16 13:55:00 
Presentation Time 25 minutes 
Registration for EMCJ 
Paper # EMCJ2026-18 
Volume (vol) vol.126 
Number (no) no.114 
Page pp.13-16 
#Pages 4 
Date of Issue 2026-07-09 (EMCJ) 

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