误差分离双通道环路滤波器的分析与设计

Analysis and Design of Double Channel Filter for Loop Error Separating

在UHF和微波宽带锁相系统中，误差分离双通道环路滤波器对锁相系统的捕捉等性能，尤其是对获得低相位噪声特性起着极其重要的作用．本文介绍这种环路滤波器的工作原理、分析模型、主要特点、电路设计实例以及所获得的主要实验结果．

The double channel filter for loop error separating is the necessary element for the broad band phase-locked system in UHF and microwave frequencies. This filter not only can be used to improve signal acquisition behavors, stability for phase-locked loops and so on, but is particulary useful for achieving optimal phase noise performances in PLLs' system. In this paper, the operating principle of the filter, a simple analysis of the models and the circuits features are presented, In application, the practical example of the circuit design is considered, and some experimental results given proves to be interesting.