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Paper Abstract and Keywords
Presentation 2012-11-21 15:45
Antenna Performance of Push-to-Talk Transceiver in VHF and UHF Bands Considering Impedance Matching
Naoto Kogo, Tetsuomi Ikeda (NHK)
Abstract (in Japanese) (See Japanese page) 
(in English) The push-to-talk communication line for broadcasting services is used in the VHF band (165 MHz) and UHF band (460 MHz) in Japan. It is used for communication between staff during news gathering, television and radio program production, and so on. We designed a helical antenna with a metallic case as a handheld type transceiver and calculated the characteristics of the antenna with a numerical model of the human body. To investigate the effect of the human body on the performance of the antenna and the specific absorption rate on the human body, we calculated the antenna gain, radiation patterns and SAR when the antenna is in close proximity to the face. From these results, we found that using push-to-talk transceivers at a distance “d” that is more than 100 mm from the view point of antenna gain and SAR.
Keyword (in Japanese) (See Japanese page) 
(in English) VHF Band / UHF Band / Push-to-Talk Communication Line / Helical Antenna / Numerical Human-Body Model / Radiation Pattern / Human Posture / SAR(Specific Absorption Rate)  
Reference Info. ITE Tech. Rep., vol. 36, no. 51, BCT2012-100, pp. 33-38, Nov. 2012.
Paper # BCT2012-100 
Date of Issue 2012-11-14 (BCT) 
ISSN Print edition: ISSN 1342-6893  Online edition: ISSN 2424-1970
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Conference Information
Conference Date 2012-11-21 - 2012-11-22 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English) Optical access system/next gen. PON/optical monitoring/optical fiber/wireless system/etc. 
Paper Information
Registration To BCT 
Conference Code 2012-11-OFT-OCS-BCT-CMN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Antenna Performance of Push-to-Talk Transceiver in VHF and UHF Bands Considering Impedance Matching 
Sub Title (in English)  
Keyword(1) VHF Band  
Keyword(2) UHF Band  
Keyword(3) Push-to-Talk Communication Line  
Keyword(4) Helical Antenna  
Keyword(5) Numerical Human-Body Model  
Keyword(6) Radiation Pattern  
Keyword(7) Human Posture  
Keyword(8) SAR(Specific Absorption Rate)  
1st Author's Name Naoto Kogo  
1st Author's Affiliation NHK (NHK)
2nd Author's Name Tetsuomi Ikeda  
2nd Author's Affiliation NHK (NHK)
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Date Time 2012-11-21 15:45:00 
Presentation Time 25 
Registration for BCT 
Paper # BCT2012-100 
Volume (vol) 36 
Number (no) no.51 
Page pp.33-38 
Date of Issue 2012-11-14 (BCT) 

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