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Paper Abstract and Keywords
Presentation 2013-01-31 09:20
Radiation Efficiency Enhancement on Circularly Polarized Leaky Wave Antenna using Composite Right/Left-Handed Transmission Line
Masahiko Ishii, Takeshi Fukusako (Kumamoto Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) This study presents a radiation efficiency enhancement on circularly polarized leaky wave antenna (CP LWA) using composite right/left handed transmission line (CRLH-TL). In my previous research, the CP LWA was achieved because of the better phase difference and amplitude ratio. The 90° -phase difference can be obtained by optimizing the dimension of the unit cell. And the amplitude ratio of |Ex| and |Ey| for CP was obtained by selecting a suitable position of the CRLH-TL between both edges of the ground. In this study, the radiation efficiency is enhanced by increasing the number of the unit cell, maintaining the circular polarization characteristics by applying the same method as previous research. As a result, the radiation efficiency of 52% is obtained on the operation frequency band which is from 2.68 to 2.9 GHz by the experiment.
Keyword (in Japanese) (See Japanese page) 
(in English) Leaky Wave Antenna / CRLH-TL / Circular Polarization / Axial Ratio / Radiation Efficiency / / /  
Reference Info. ITE Tech. Rep., vol. 37, no. 4, BCT2013-22, pp. 87-90, Jan. 2013.
Paper # BCT2013-22 
Date of Issue 2013-01-23 (BCT) 
ISSN Print edition: ISSN 1342-6893
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Conference Information
Conference Date 2013-01-30 - 2013-01-31 
Place (in Japanese) (See Japanese page) 
Place (in English) Kumamoto Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To BCT 
Conference Code 2013-01-BCT-KYUSHU-BT-AP-S-FUKUOKA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Radiation Efficiency Enhancement on Circularly Polarized Leaky Wave Antenna using Composite Right/Left-Handed Transmission Line 
Sub Title (in English)  
Keyword(1) Leaky Wave Antenna  
Keyword(2) CRLH-TL  
Keyword(3) Circular Polarization  
Keyword(4) Axial Ratio  
Keyword(5) Radiation Efficiency  
1st Author's Name Masahiko Ishii  
1st Author's Affiliation Kumamoto University (Kumamoto Univ.)
2nd Author's Name Takeshi Fukusako  
2nd Author's Affiliation Kumamoto University (Kumamoto Univ.)
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Speaker Author-1 
Date Time 2013-01-31 09:20:00 
Presentation Time 20 minutes 
Registration for BCT 
Paper # BCT2013-22 
Volume (vol) vol.37 
Number (no) no.4 
Page pp.87-90 
Date of Issue 2013-01-23 (BCT) 

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