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Paper Abstract and Keywords
Presentation 2005-05-19 16:05
Frequency characteristics of the electromagnetic field near the human body in a wearable device using the human body as a transmission channel
Daisuke Ishide, Katsuyuki Fujii, Masaharu Takahashi, Koichi Ito (Chiba Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, the study on wearable devices which enable the exchange of information anywhere and at anytime is growing. As one example, an authentication system that uses a wrist watch type transmitter having an electrode is proposed. Besides, the demand of high speed data communications using high frequencies is expected to increase in the near future. Therefore, in this report, the characteristics of the electromagnetic field around the human body and its radiation were examined when the frequency varies. As a result, until 700 MHz the dominant wave in the vicinity of the body is the surface wave and it confirmed that an efficient communication occurs when using the human body as a transmission channel. Furthermore, the mechanism of the frequency-dependant transmission is solved.
Keyword (in Japanese) (See Japanese page) 
(in English) Intra-body communication / FDTD / Wearable computing / / / / /  
Reference Info. IEICE Tech. Rep., vol. 105, no. 59, AP2005-21, pp. 69-72, May 2005.
Paper # AP2005-21 
Date of Issue 2005-05-12 (AP) 
ISSN Print edition: ISSN 0913-5685
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Conference Information
Committee AP SAT  
Conference Date 2005-05-19 - 2005-05-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Tottori Univ. of Environmental Studies 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Antenna and Propagation in Satellite Communications and Satellite Communication in General 
Paper Information
Registration To AP 
Conference Code 2005-05-AP-SAT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Frequency characteristics of the electromagnetic field near the human body in a wearable device using the human body as a transmission channel 
Sub Title (in English)  
Keyword(1) Intra-body communication  
Keyword(2) FDTD  
Keyword(3) Wearable computing  
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1st Author's Name Daisuke Ishide  
1st Author's Affiliation Chiba University (Chiba Univ.)
2nd Author's Name Katsuyuki Fujii  
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 2005-05-19 16:05:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2005-21 
Volume (vol) vol.105 
Number (no) no.59 
Page pp.69-72 
#Pages
Date of Issue 2005-05-12 (AP) 


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