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학술지 Adaptive Calibration Method in Multiport Amplifier for K-Band Payload Applications
Cited 11 time in scopus Download 2 time Share share facebook twitter linkedin kakaostory
저자
문성모, 신동환, 이홍열, 엄만석, 염인복, 이문규
발행일
201308
출처
ETRI Journal, v.35 no.4, pp.718-721
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.13.0212.0534
협약과제
12PR2800, Ka대역 서비스 지역별 위성출력 제어기술 개발, 염인복
초록
This letter proposes a novel calibration method for a multiport amplifier (MPA) to achieve optimum port-to-port isolation by correcting both the amplitude and phase of the calibration signals. The proposed architecture allows for the detection of the phase error and amplitude error in each RF signal path simultaneously and can enhance the calibrated resolution by controlling the analog phase shifters and attenuators. The designed 2×2 and 4×4 MPAs show isolation characteristics of 30 dB and 27 dB over a frequency range of 19.5 GHz to 22.5 GHz, respectively. © 2013 ETRI.
키워드
Attenuator, Calibration, Drive amplifier, Microwave monolithic integrated circuit (MMIC), Multiport amplifier (MPA), Phase shifter, Port-to-port isolation
KSP 제안 키워드
9.5 GHZ, Adaptive calibration, Amplitude error, Calibration method, Frequency Range, K-band, Phase Shifter, Port-to-port isolation, RF signals, monolithic integrated circuit, phase error