微波滤波器设计的新观点

微波滤波器设计的新观点

内容简介：根据三角级数展开理论，将理想滤波器特性曲线做级数展开，然后用单节微带线逼近展开式申的一项或多项，级联后逼近理想的滤波器特性曲线。该方法避免了传统滤波器设计方法中的微带线建模分析的困难．在设计出的电路形式中，各单元的作用更易理解，给滤波器的调节也带来了方便。最后给出了该方法的设计实例，具有较好的频率特性曲线。

Abstract：According to the theory of expansion of series, decompose microwave filter frequency response in series, use single microstrip line to approximate the items and combine them, consequently get the approximate ideal frequency response. This method avoid the difficulties of microstip line modeling, and get a easy approach to the benefits of filter elements, which makes the adjustment work easier. In the end, produce an example which shows good frequency response.

作者：白志强, 丁君, 郭陈江,

关键词：级数展开, 微带线, 单元分解, 波形叠加