Information: Join today and make your research activities more affordable! Technical workshop participation fees and annual registration fees are available at member rates.
Notice: [Important] Announcement of Changes to Registration Fee Payment and Manuscript Upload Procedures for IEICE Technical Meetings
IEICE Technical Committee Submission System
Conference Paper's Information		 Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2025-07-10 10:00
Evaluation of Temperature Rise in Anatomical Human Head Models for Local Exposure at Multiple Frequencies
Yuma Kobayashi, So Yamaoka, Sachiko Kodera (NITech), Takahiro Iyama, Junji Higashiyama, Yasunori Suzuki (NTT DOCOMO), Akimasa Hirata (NITech) EMT2025-9 MW2025-22 OPE2025-12 EST2025-8 MWPTHz2025-22
Abstract (in Japanese) (See Japanese page) 
(in English) The ICNIRP guidelines and IEEE standards define the specific absorption rate averaged over 10 g of tissue (10gSAR) and the absorbed power density (APD) as the basic restrictions for local exposure at frequencies below and above 6 GHz, respectively. In the current fifth-generation mobile communication system (5G), the primary frequency bands include the Sub-6 bands such as 3.7/4.5 GHz, as well as millimeter-wave bands. Moreover, 52.6–71 GHz bands are being considered for allocation. Since 4G and 5G technologies are commonly used in parallel in current communication environments, it is expected that multiple frequency bands governed by different metrics will be used simultaneously. While compliance assessments require the use of appropriate metrics for each frequency band, there are limited studies that evaluate the biological temperature rise for local exposure from multiple sources operating different frequency bands considering actual communication device models. In this study, we investigate the impact of antenna placement on the resulting temperature rise in biological tissue, assuming electromagnetic field exposure from a multi-antenna communication device operating at different frequency bands.
Keyword (in Japanese) (See Japanese page) 
(in English) electromagnetic fields exposure / local exposure / simultaneous multi-frequency exposure / conformity assessment / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 111, EST2025-8, pp. 6-10, July 2025.
Paper # EST2025-8 
Date of Issue 2025-07-03 (EMT, MW, OPE, EST, MWPTHz) 
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 EMT2025-9 MW2025-22 OPE2025-12 EST2025-8 MWPTHz2025-22

Conference Information
Committee EMT OPE EST MWPTHz MW IEE-EMT  
Conference Date 2025-07-10 - 2025-07-11 
Place (in Japanese) (See Japanese page) 
Place (in English) Okhotsk JA Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Workshop on Optical and Microwave technologies 
Paper Information
Registration To EST 
Conference Code 2025-07-EMT-OPE-EST-MWPTHz-MW-EMT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation of Temperature Rise in Anatomical Human Head Models for Local Exposure at Multiple Frequencies 
Sub Title (in English)  
Keyword(1) electromagnetic fields exposure  
Keyword(2) local exposure  
Keyword(3) simultaneous multi-frequency exposure  
Keyword(4) conformity assessment  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Yuma Kobayashi  
1st Author's Affiliation Nagoya Institute of Technology (NITech)
2nd Author's Name So Yamaoka  
2nd Author's Affiliation Nagoya Institute of Technology (NITech)
3rd Author's Name Sachiko Kodera  
3rd Author's Affiliation Nagoya Institute of Technology (NITech)
4th Author's Name Takahiro Iyama  
4th Author's Affiliation NTT DOCOMO, Inc. (NTT DOCOMO)
5th Author's Name Junji Higashiyama  
5th Author's Affiliation NTT DOCOMO, Inc. (NTT DOCOMO)
6th Author's Name Yasunori Suzuki  
6th Author's Affiliation NTT DOCOMO, Inc. (NTT DOCOMO)
7th Author's Name Akimasa Hirata  
7th Author's Affiliation Nagoya Institute of Technology (NITech)
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th Author's Affiliation ()
()
Speaker Author-1 
Date Time 2025-07-10 10:00:00 
Presentation Time 25 minutes 
Registration for EST 
Paper # EMT2025-9, MW2025-22, OPE2025-12, EST2025-8, MWPTHz2025-22 
Volume (vol) vol.125 
Number (no) no.108(EMT), no.109(MW), no.110(OPE), no.111(EST), no.112(MWPTHz) 
Page pp.6-10 
#Pages 5 
Date of Issue 2025-07-03 (EMT, MW, OPE, EST, MWPTHz) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan