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引言产生瞬态互调失真(TIM)的一些原因和抑制方法,已在“功率放大器的瞬态互调失真”一文中作了叙述。瞬态互调失真的定义是:瞬态过载现象是由于使用了深度负反馈而伴随着深度滞后补偿而引起的。上文还叙述了消除瞬态互调失真的几个设计方法:①使功率放大器具有较低的总开环增益。②使功率放大器的各级具有最大带宽和线性。
Introduction Some of the causes of transient intermodulation distortion (TIM) and suppression methods are described in “Transient IMD of Power Amplifiers.” Transient intermodulation distortion is defined as: Transient overload is due to the use of deep negative feedback with deep lag compensation. The above also describes several ways to eliminate the transient intermodulation distortion: ① make the power amplifier has a lower total open-loop gain. ② the power amplifier at all levels with the maximum bandwidth and linearity.