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Paper Abstract and Keywords
Presentation 2012-12-21 10:45
Analysis of a Practical Balanced Dipole Antenna Using Balanced and Unbalanced Modes
Junki Hayakawa, Nozomu Ishii (Niigata Univ)
Abstract (in Japanese) (See Japanese page) 
(in English) In this report, we estimate the ratio between the balanced and unbalanced modes which are excited on the practical balanced antenna in terms of CMRR(common-mode rejection ratio). We introduce mixed mode $S$-parameters to analyze the modes which exist on the antenna, and derive the input impedance for the blanced mode and the input admitance for the unbalanced mode expressed by $S$-parameters. By evaluating CRMM at the resonance of the balanced dipole antenna, we can find that the amount of the reflection for the balanced mode is reduced, CMRR is minimized, and the relatively large excitation for the unbalanced mode can be observed. By evaluating the power ratio of the balanced mode to all modes, we can examine the excitation of the balanced mode at the resonance of the antenna.
Keyword (in Japanese) (See Japanese page) 
(in English) balanced antenna / S-parameter method / mixed mode S-parameter / CMRR / hybrid coupler / / /  
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Conference Information
Committee AP  
Conference Date 2012-12-21 - 2012-12-21 
Place (in Japanese) (See Japanese page) 
Place (in English) KDDI Naha Building 6F 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Measurement Techique of Radio Equipment and Antenna Systems 
Paper Information
Registration To AP 
Conference Code 2012-12-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Analysis of a Practical Balanced Dipole Antenna Using Balanced and Unbalanced Modes 
Sub Title (in English)  
Keyword(1) balanced antenna  
Keyword(2) S-parameter method  
Keyword(3) mixed mode S-parameter  
Keyword(4) CMRR  
Keyword(5) hybrid coupler  
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1st Author's Name Junki Hayakawa  
1st Author's Affiliation Niigata University (Niigata Univ)
2nd Author's Name Nozomu Ishii  
2nd Author's Affiliation Niigata University (Niigata Univ)
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Speaker Author-1 
Date Time 2012-12-21 10:45:00 
Presentation Time 30 minutes 
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