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Presentation
[Poster Presentation] A study on Q-factor calculated from impedance characteristic of small antennas
Harutaka Kyomura, Keisuke Noguchi, Shigeru Makino, Tetsuo Hirota, Kenji Ito (KIT)
Abstract (in Japanese) (See Japanese page) 
(in English) Small antennas of active RFID tags have low radiation efficiency because of its smaller size compared with wave
length and loss materials such as surface mounted elements. Q-factor method is well known to calculate radiation efficiency of
antennas and the method needs accurate value of Q-factor. We investigate, in this study, the method to calculate precise Q-factor
from impedance characteristics.
Keyword (in Japanese) (See Japanese page) 
(in English) Q-factor / radiation efficiency / top loaded monopole antenna (TLMA) / / / / /  
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Conference Information
Committee AP  
Conference Date 2014-05-15 - 2014-05-16 
Place (in Japanese) (See Japanese page) 
Place (in English) The Kanazawa Theatre 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Asian Workshop on Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2014-05-AP 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A study on Q-factor calculated from impedance characteristic of small antennas 
Sub Title (in English)  
Keyword(1) Q-factor  
Keyword(2) radiation efficiency  
Keyword(3) top loaded monopole antenna (TLMA)  
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1st Author's Name Harutaka Kyomura  
1st Author's Affiliation Kanaawa Institute of Technology (KIT)
2nd Author's Name Keisuke Noguchi  
2nd Author's Affiliation Kanaawa Institute of Technology (KIT)
3rd Author's Name Shigeru Makino  
3rd Author's Affiliation Kanaawa Institute of Technology (KIT)
4th Author's Name Tetsuo Hirota  
4th Author's Affiliation Kanaawa Institute of Technology (KIT)
5th Author's Name Kenji Ito  
5th Author's Affiliation Kanaawa Institute of Technology (KIT)
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