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Paper Abstract and Keywords
Presentation 2010-01-22 14:35
Expansion of the SAR-probe calibration system using the reference dipole antennas in head-simurating liquid
Lira Hamada (NICT), Yukihiro Miyota, Ken-ichi Sato (NTT-AT), Nozomu Ishii (Niigata Univ), Soichi Watanabe (NICT) EMCJ2009-121
Abstract (in Japanese) (See Japanese page) 
(in English) he SAR-probe is usually calibrated using a rectangular waveguide with a matching dielectric spacer above 800MHz and below 3 GHz. However, below 800MHz, the waveguide is hard to be used for the calibration because the size of waveguide becomes too big. Therefore, we have proposed an alternative method for calibrating the SAR-probe, that is, relating the output voltage of the probe to the field intensity produced by a rference antenna in the liquid by two-antenna method. In the previous report, we presented the validity of our calibration method using reference dipole antenna in the head-simulation liquid at 2.45GHz. In this reports, we present that we create the calibration system for 450MHz and result of absolute antenna gain and SAR probe calibration factor. In addition to it, we also create the dipole antenna for 900MHz and 2450MHz and perform the calibration to compare with the calibration factor using a rectangular waveguide.
Keyword (in Japanese) (See Japanese page) 
(in English) Specific Absorption Rate(SAR) / probe calibration / tissue-equivalent liquid / two-antenna method / absolute gain / near field / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 370, EMCJ2009-121, pp. 135-140, Jan. 2010.
Paper # EMCJ2009-121 
Date of Issue 2010-01-14 (EMCJ) 
ISSN Print edition: ISSN 0913-5685    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 2010-01-21 - 2010-01-22 
Place (in Japanese) (See Japanese page) 
Place (in English) University of the Ryukyus 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMCJ 
Conference Code 2010-01-EMCJ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Expansion of the SAR-probe calibration system using the reference dipole antennas in head-simurating liquid 
Sub Title (in English)  
Keyword(1) Specific Absorption Rate(SAR)  
Keyword(2) probe calibration  
Keyword(3) tissue-equivalent liquid  
Keyword(4) two-antenna method  
Keyword(5) absolute gain  
Keyword(6) near field  
Keyword(7)  
Keyword(8)  
1st Author's Name Lira Hamada  
1st Author's Affiliation National Institutiote of Information and Communications Technology (NICT)
2nd Author's Name Yukihiro Miyota  
2nd Author's Affiliation NTT Advanced Technology (NTT-AT)
3rd Author's Name Ken-ichi Sato  
3rd Author's Affiliation NTT Advanced Technology (NTT-AT)
4th Author's Name Nozomu Ishii  
4th Author's Affiliation Niigata University (Niigata Univ)
5th Author's Name Soichi Watanabe  
5th Author's Affiliation National Institutiote of Information and Communications Technology (NICT)
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Speaker Author-2 
Date Time 2010-01-22 14:35:00 
Presentation Time 25 minutes 
Registration for EMCJ 
Paper # EMCJ2009-121 
Volume (vol) vol.109 
Number (no) no.370 
Page pp.135-140 
#Pages 6 
Date of Issue 2010-01-14 (EMCJ) 

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