상세정보
학술지
Adaptive Calibration Method in Multiport Amplifier for K-Band Payload Applications
- 발행일
- 201308
- 출처
- ETRI Journal, v.35 no.4, pp.718-721
- ISSN
- 1225-6463
- 출판사
- 한국전자통신연구원 (ETRI)
- 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.
- KSP 제안 키워드
- 9.5 GHZ, Adaptive calibration, Amplitude error, Calibration method, Frequency Range, K-band, Phase Shifter, Port-to-port isolation, RF signal, phase error