SLF 通信系统中功率放大器谐波抑制问题研究磁

摘要

论述了 SLF 通信系统中开关功率放大器谐波产生的机理，分析了目前 SLF 通信系统中采用 LC 滤波方案来抑制谐波的优点和局限性。结合 SLF 通信系统的实际，提出了 APF 和波形合成两种进一步抑制谐波的方案，并论证了其可行性。%The mechanism of harmonic restraining in switching Power Amplifier of SLF communication system is dis‐cussed ,and the advantages and limitations of SLF ommunication system using LC filter scheme to suppress the harmonic at present are analyzed .Combined with the practical of SLF communication system ,further harmonic suppression scheme with synthesis of APF and waveform is proposed ,and its feasibility is proved .