상세정보
학술대회
Simulation and Effects of Phase Signal Leakage in an Improved Kahn Based Modulator for a High Efficiency Power Amplifier
- 발행일
- 201212
- 출처
- Asia-Pacific Microwave Conference (APMC) 2012, pp.935-937
- 협약과제
- 12MI1300, 차세대 이동통신 기지국용 Class-S 전력증폭기 기술 연구, 정재호
- 초록
- This paper presents a simulation related to phase signal leakage in an improved Kahn based modulator for a high efficiency power amplifier. It contains a mathematical modeling of a leaked phase signal, an EVM simulation versus leakage, and a validation of the simulation method through comparison with measurement results. These are done using a LTE signal which has a bandwidth of 10 MHz, a PAPR of 9.9 dB, and a carrier frequency of 2.6 GHz for a modulator with a 3-level LPDSM. The difference between simulated and measured percent EVM is less than 0.2 %p. It is also shown that a leakage value L can be estimated from characteristics of a mixer and a LPDSM. And effects of phase signal leakage on efficiency of a power amplifier are discussed. © 2012 IEEE.
- KSP 제안 키워드
- 2.6 GHz, 3-Level, Carrier frequency, High Efficiency Power Amplifier, Mathematical Modeling, Simulation method, measurement results, power amplifiers(PAs), signal leakage