同址干扰用电调谐带通滤波器设计

Design of Electrical Tunable Band-pass Filter for Cosite Interference

介绍了电调谐滤波器设计原理及在同址干扰中的应用，采用伪梳状线思想对传统结构滤波器进行优化，提出两端均为电容调谐的电调滤波器结构。设计微带线实现的变容管电调谐带通滤波器，对改进后的滤波器性能进行仿真。该文设计的滤波器调节范围为580～900MHz，在体积上具有一定优势。

The current development of electrical tunable band-pass filters and its application to the cosite inter- ference is presented in this paper. The configuration of the electrical tunable band-pass filter is optimized based on the pseudo-combline, and the improved filter is tuned with capacitors at both the two ends of the filter. The analytical solutions of the parameters and the design procedure of the filter are presented. The filter designed in this work is tuned from 580-900 MHz, and gets some advantages in the dimension.