Paper Abstract and Keywords |
Presentation |
2018-05-18 14:35
[Invited Talk]
Assessment methods for radio protection with respect to advanced wireless systems Teruo Onishi (NTT DOCOMO) MWP2018-1 Link to ES Tech. Rep. Archives: MWP2018-1 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Currently research and development as well as standardization on the 5th mobile communication system (5G) have been actively conducted all over the world. Frequency bands above 6 GHz for 5G are considered in addition to those used for current mobile systems. From exposure assessment point of view, the power density should be used above 6 GHz as a measurement index while the Specific Absorption Rate (SAR) has been used for near-field exposure up to 6 GHz. Basically, the power density can be obtained by measuring the electric field in the far-field. However, since it is expected that mobile devices that operate above 6 GHz will be used in close proximity to the human body, exposure assessment methods focusing on near-field exposure should be investigated. Wireless Power Transfer (WPT) systems for mobile phones, portable devices, home appliances, and electric vehicles (EV) have been paid attention. Especially WPT systems for mobile phones and EVs have been standardized by some international bodies such International Electrotechnical Commission (IEC), respectively. The transmitted power in WPT systems is much higher than that emitted by conventional wireless devices, e.g., several kW for EV even though the employed frequency ranges are much lower, i.e., below 10 MHz. An exposure assessment at frequency range from several tens of kHz to tens of GHz has become more importants. In this paper, standardization activities with respect to evaluation of human exposure conducted by the IEC are introduced. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Evaluation of human exposure / 5th generation communication system (5G) / Wireless Power Transfer (WPT) / International Electrotechnical Commission (IEC) / Specific Absorption Rate (SAR) / Power density / / |
Reference Info. |
IEICE Tech. Rep., vol. 118, no. 43, MWP2018-1, pp. 1-6, May 2018. |
Paper # |
MWP2018-1 |
Date of Issue |
2018-05-11 (MWP) |
ISSN |
Print edition: ISSN 0913-5685 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 |
MWP2018-1 Link to ES Tech. Rep. Archives: MWP2018-1 |
Conference Information |
Committee |
MWP |
Conference Date |
2018-05-18 - 2018-05-18 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Kikai-Shinko-Kaikan Bldg. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Mobile communication systems, MWP, etc. |
Paper Information |
Registration To |
MWP |
Conference Code |
2018-05-MWP |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Assessment methods for radio protection with respect to advanced wireless systems |
Sub Title (in English) |
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Keyword(1) |
Evaluation of human exposure |
Keyword(2) |
5th generation communication system (5G) |
Keyword(3) |
Wireless Power Transfer (WPT) |
Keyword(4) |
International Electrotechnical Commission (IEC) |
Keyword(5) |
Specific Absorption Rate (SAR) |
Keyword(6) |
Power density |
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Keyword(8) |
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1st Author's Name |
Teruo Onishi |
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NTT DOCOMO, INC. (NTT DOCOMO) |
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Speaker |
Author-1 |
Date Time |
2018-05-18 14:35:00 |
Presentation Time |
35 minutes |
Registration for |
MWP |
Paper # |
MWP2018-1 |
Volume (vol) |
vol.118 |
Number (no) |
no.43 |
Page |
pp.1-6 |
#Pages |
6 |
Date of Issue |
2018-05-11 (MWP) |
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