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학술대회 Highly Linear Envelope Tracking Power Amplifier with Simple Correction Circuit
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저자
문경훈, 김주승, 진상수, 박병준, 조윤성, 박민, 김범만
발행일
201505
출처
Radio Frequency Integrated Circuits (RFIC) Symposium 2015, pp.127-130
DOI
https://dx.doi.org/10.1109/RFIC.2015.7337721
협약과제
14MS1900, 미래 사물지능통신 서비스를 위한 초고속 광역 와이파이 기술개발, 김천수
초록
In this paper, we propose an envelope tracking (ET) power amplifier (PA) with a simple correction circuit (SCC) for linear operation. The supply dependent AM-AM and AM-PM distortion of an ET PA is linearized by the SCC which is fabricated on chip. The PA and supply modulator are fabricated using I/O device of CMOS 40nm process. For the 9.35-dB peak-to-average-power ratio, 256-QAM IEEE 802.11ah signal, the ET PA delivers a power-added efficiency of 24%, an average output power of 19.4 dBm and an error vector magnitude of -30 dB.
키워드
802.11ah, broadband, Envelope tracking (ET), power amplifier (PA), simple correction circuit (SCC)
KSP 제안 키워드
256-QAM, AM-AM, AM-PM, ET PA, Envelope Tracking Power Amplifier, Envelope-tracking(ET), Highly linear, I/O devices, IEEE 802.11ah, Output power, Peak to average Power ratio(PAPR)