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Paper Abstract and Keywords
Presentation 2026-01-22 13:25
Large-Scale Numerical Analysis of Temperature Rise During Localized Radio-Frequency Exposure Using Anatomical Head Models
Itsuki Komine, Sachiko Kodera (NITech), Essam Rashed (UOH), Akimasa Hirata (NITech) EST2025-87
Abstract (in Japanese) (See Japanese page) 
(in English) With the increasing use of wireless communication devices such as mobile phones, public concern regarding potential adverse health effects for exposure to electromagnetic field is of great interest. At frequencies above 100 kHz, thermal effects are the primary interaction mechanism. In the international guidelines/standard published by ICNIRP and IEEE, the 10g-averaged SAR and absorbed power density are used as the basic restriction for local exposure below and above 6 GHz, respectively, which have a strong correlation to the local temperature rise. A reduction factor of 10 is applied to the public limits to account for uncertainties including biological variability and environmental factors. However, the rationale for addressing inter-individual variability remains limited. In this study, we evaluated the SAR, absorbed power density, and temperature rise in 131 anatomical human head models with corrected skin–fat–muscle layers when exposed to a half-wavelength dipole antenna operating at 1–80 GHz placed near the head, and assessed inter-individual variability including the effect of antenna-to-skin distance.
Keyword (in Japanese) (See Japanese page) 
(in English) electromagnetic field exposure / local exposure / temperature rise computation / / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 328, EST2025-87, pp. 31-36, Jan. 2026.
Paper # EST2025-87 
Date of Issue 2026-01-15 (EST) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
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 EST2025-87

Conference Information
Committee EST  
Conference Date 2026-01-22 - 2026-01-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Nobumoto Ohama Memorial Hal 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Simulation techniques, etc. 
Paper Information
Registration To EST 
Conference Code 2026-01-EST 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Large-Scale Numerical Analysis of Temperature Rise During Localized Radio-Frequency Exposure Using Anatomical Head Models 
Sub Title (in English)  
Keyword(1) electromagnetic field exposure  
Keyword(2) local exposure  
Keyword(3) temperature rise computation  
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1st Author's Name Itsuki Komine  
1st Author's Affiliation Nagoya Institute of Technology (NITech)
2nd Author's Name Sachiko Kodera  
2nd Author's Affiliation Nagoya Institute of Technology (NITech)
3rd Author's Name Essam Rashed  
3rd Author's Affiliation University of Hyogo (UOH)
4th Author's Name Akimasa Hirata  
4th Author's Affiliation Nagoya Institute of Technology (NITech)
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Speaker Author-1 
Date Time 2026-01-22 13:25:00 
Presentation Time 25 minutes 
Registration for EST 
Paper # EST2025-87 
Volume (vol) vol.125 
Number (no) no.328 
Page pp.31-36 
#Pages 6 
Date of Issue 2026-01-15 (EST) 

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