상세정보
학술대회
A Fully Digital Polar Modulator for Switch Mode RF Power Amplifier
- 발행일
- 201205
- 출처
- International Symposium on Circuits and Systems (ISCAS) 2012, pp.2385-2388
- 협약과제
- 12MI1300, 차세대 이동통신 기지국용 Class-S 전력증폭기 기술 연구, 정재호
- 초록
- In this paper, a novel fully digital modulator for a switch mode power amplifier (SMPA) is presented. The modulator converts the input baseband amplitude and phase signals into a two-level pulse train for driving an RF SMPA. The simulation results demonstrated a proof of the concept. The proposed architecture is analyzed in terms of accuracy by measuring EVM. The impact of the modulator parameters on the SMPA performance is investigated and corresponding results are shown. The modulator was simulated with a 20 MHz LTE signal. © 2012 IEEE.
- KSP 제안 키워드
- Digital Modulator, Pulse train(PT), RF power amplifier, Switch Mode Power amplifier, Two-level, fully digital, polar modulator, power amplifiers(PAs), simulation results