상세정보
학술대회
PWM Based CMOS Supply Modulator for LTE Envelope Tracking Transmitter
- 발행일
- 201109
- 출처
- International Conference on Information and Communication Technology Convergence (ICTC) 2011, pp.622-623
- 협약과제
- 11MI1900, 차세대 이동통신 기지국용 Class-S 전력증폭기 기술 연구, 정재호
- 초록
- A PWM based supply modulator on 180nm CMOS process for a high efficiency envelope tracking transmitter is designed. For high efficiency PWM operation, a ramp generator and a non-overlap clock generator are used. With an LTE 20MHz envelope signal with 7.6dB PAPR, the supply modulator shows efficiency of 72.2% with a resistive load of 2ohm. © 2011 IEEE.
- KSP 제안 키워드
- CMOS Process, Envelope-tracking(ET), Resistive load, Supply modulator, clock generator, envelope signal, high efficiency, ramp generator