同轴腔带通滤波器的一种设计方法  

A Design Method for Coaxial Cavity Band Pass Filters

作　　者：徐鸿飞[1] 朱成钰[1] 刘坚[2] 孙忠良[1] 

机构地区：[1]东南大学毫米波国家重点实验室,南京210096 [2]西南电子电信技术研究所上海研究处,上海200232

出　　处：《微波学报》2004年第2期55-58,共4页Journal of Microwaves

摘　　要：采用负阻线子网络[1] 构造了多腔耦合的同轴带通滤波器电路模型 ,应用电路分析软件对滤波器进行了分析优化 ,得到腔体之间耦合系数和接入点位置。应用三维全波分析软件 ,分析了腔体结构参数与耦合系数和耦合窗的关系。以这种路和场的仿真、优化相结合的方法 ,得出了滤波器的耦合和输入输出结构参数。运用该方法设计的中心频率 2 .4GHz ,通带 10A circuit model for coaxial cavity filter constructed from negative sub networks is presented in this paper. Based on this model, circuit parameters such as cavity coupling factors and input output locations of are optimized by commercial microwave circuit simulation software. The width of coupling windows between the cavities and diameters of input output lines are acquired by modal frequency analysis and full wave optimization with commercial 3D full wave simulation software. A six cavity band pass filter with a pass band of 100MHz at 2.4GHz designed in this way has the response coincided with the result of circuit simulation.

关 键 词：多腔耦合 带通滤波器 同轴腔谐振器 全波分析 电路优化 

分 类 号：TN713[电子电信—电路与系统]