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학술지 90° Branch-Line Coupler with Reconfigurable Output Power Ratios
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저자
바트게렐, 엄순영
발행일
201308
출처
Microwave and Optical Technology Letters, v.55 no.8, pp.1878-1881
ISSN
0895-2477
출판사
John Wiley & Sons
DOI
https://dx.doi.org/10.1002/mop.27703
협약과제
12PR5100, 전파간섭 극복 기반 근거리 무선전송(Post-Wifi) 핵심 기술개발, 최재익
초록
This letter introduces a new 90째 branch-line coupler with reconfigurable output power ratios (90째 BC-ROPR). Unlike a conventional branch-line coupler structure, each arm of the proposed 90째 BC-ROPR is defined by an asymmetrically coupled-line, and its characteristic impedance depends on the configuration of the coupled-line. The main problem that challenged this structure was unwanted loop resonance from the inner transmission lines which form a loop in a disconnected configuration. The proposed structure was designed to obtain 1:1 and 4:1 output power ratios at 3 GHz. Both the simulation and measurement results confirm that the proposed branch-line coupler successfully dealt with the loop resonance and achieved excellent performance. Copyright © 2013 Wiley Periodicals, Inc.
키워드
90째 branch-line coupler, power divider, reconfigurable branch-line coupler, reconfigurable output power ratio
KSP 제안 키워드
Branch-Line Coupler, Coupled line, Output power, Simulation and measurement, Transmission line, characteristic impedance, coupler structure, excellent performance, measurement results, power divider, power ratio