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Paper Abstract and Keywords
Presentation 2022-01-21 14:10
Design of Dual-Beam Dual Circularly Polarized Microstrip Antenna Employing Slot-Coupling Directional Coupler Integrated Feeding Circuit
Daiki Iwamoto, Eisuke Nishiyama, Ichihiko Toyoda (Saga Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes a dual-beam dual circularly polarized (CP) microstrip antenna that has a CP switching function in two different directions. The proposed antenna’s feeding circuit is a 4 × 4 multi-port directional coupler effectively using slot-coupling directional couplers. Four different phase conditions are realized at the output ports according to the input port. The proposed antenna consists of the feeding circuit and two dual-feed CP microstrip antennas. It provides four different radiation patterns by switching the input port. In this paper, the proposed array antenna is designed to have axial ratios better than 1 dB in around pm10° directions, and the performance is numerically evaluated by using electromagnetic simulation.
Keyword (in Japanese) (See Japanese page) 
(in English) Directional Coupler / Dual-Beam / Dual Circular Polarization / Microstrip Antenna / / / /  
Reference Info. ITE Tech. Rep., vol. 46, no. 1, BCT2022-7, pp. 25-28, Jan. 2022.
Paper # BCT2022-7 
Date of Issue 2022-01-14 (BCT) 
ISSN Print edition: ISSN 1342-6893    Online edition: ISSN 2424-1970
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Conference Information
Conference Date 2022-01-21 - 2022-01-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To BCT 
Conference Code 2022-01-BCT-KYUSHU-BT-AP-S-FUKUOKA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Design of Dual-Beam Dual Circularly Polarized Microstrip Antenna Employing Slot-Coupling Directional Coupler Integrated Feeding Circuit 
Sub Title (in English)  
Keyword(1) Directional Coupler  
Keyword(2) Dual-Beam  
Keyword(3) Dual Circular Polarization  
Keyword(4) Microstrip Antenna  
1st Author's Name Daiki Iwamoto  
1st Author's Affiliation Saga University (Saga Univ.)
2nd Author's Name Eisuke Nishiyama  
2nd Author's Affiliation Saga University (Saga Univ.)
3rd Author's Name Ichihiko Toyoda  
3rd Author's Affiliation Saga University (Saga Univ.)
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Speaker Author-1 
Date Time 2022-01-21 14:10:00 
Presentation Time 20 minutes 
Registration for BCT 
Paper # BCT2022-7 
Volume (vol) vol.46 
Number (no) no.1 
Page pp.25-28 
Date of Issue 2022-01-14 (BCT) 

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