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Paper Abstract and Keywords
Presentation 2008-07-23 16:40
Evaluation on Radiation Characteristics of UWB Antenna in vicinity of Arm
Takuya Seki, Kazuyuki Saito, Masaharu Takahashi, Koichi Ito (Chiba Univ.) AP2008-50
Abstract (in Japanese) (See Japanese page) 
(in English) The UWB (Ultra Wide Band) system recently has been applied to various fields such as wireless USB (Universal Serial Bus), radar system, and so on. Furthermore, the UWB system has been expected to be used near the human body in the standardization of the WBAN (Wireless Body Area Network) system. In this paper, a UWB antenna, which operates at 7.25 to 10.25 GHz and is able to be worn as a wristwatch, is proposed. This band can be used UWB communication in Japan, and is not necessary to append DAA (Detect And Avoid) mechanism. As the characteristics of proposed antenna in the near- and far-field regions, the electric field distributions near the human arm and radiation patterns are shown, respectively. From these results, it is confirmed that the propagation to the tip of a human arm is advantage than the back direction and vertical electric component is dominant mode. Therefore, the antenna is useful as the UWB antenna for wristwatch type.
Keyword (in Japanese) (See Japanese page) 
(in English) UWB / human body / wristwatch / wearable / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 148, AP2008-50, pp. 81-86, July 2008.
Paper # AP2008-50 
Date of Issue 2008-07-16 (AP) 
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)
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Conference Information
Committee AP SAT  
Conference Date 2008-07-23 - 2008-07-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Satellite Communications, Antennas and Progation, etc. 
Paper Information
Registration To AP 
Conference Code 2008-07-AP-SAT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation on Radiation Characteristics of UWB Antenna in vicinity of Arm 
Sub Title (in English)  
Keyword(1) UWB  
Keyword(2) human body  
Keyword(3) wristwatch  
Keyword(4) wearable  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Takuya Seki  
1st Author's Affiliation Chiba University (Chiba Univ.)
2nd Author's Name Kazuyuki Saito  
2nd Author's Affiliation Chiba University (Chiba Univ.)
3rd Author's Name Masaharu Takahashi  
3rd Author's Affiliation Chiba University (Chiba Univ.)
4th Author's Name Koichi Ito  
4th Author's Affiliation Chiba University (Chiba Univ.)
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Speaker Author-1 
Date Time 2008-07-23 16:40:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2008-50 
Volume (vol) vol.108 
Number (no) no.148 
Page pp.81-86 
#Pages 6 
Date of Issue 2008-07-16 (AP) 

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