耦合谐振腔滤波器灵敏度的快速分析方法  

Rapid Analitical Method for Sensitivity of Coupled Cavity Resonator Filter

作　　者：李刚[1] 胡旭[2] 

机构地区：[1]湖北文理学院物理与电子工程学院,湖北襄阳441053 [2]湖北文理学院经济与政法学院,湖北襄阳441053

出　　处：《湖北文理学院学报》2013年第8期5-7,共3页Journal of Hubei University of Arts and Science

基　　金：湖北文理学院博士科研基金(2013B006)

摘　　要：针对传统蒙特卡罗法分析耦合谐振腔滤波器灵敏度耗时太长的问题,提出了一种基于理论梯度公式的快速灵敏度分析方法.文章详细推导了滤波器散射参数对终端阻抗和耦合系数的灵敏度解析表达式,并采用MATLAB编程实现了基于灵敏度表达式的数值算法.应用该算法对5阶交叉耦合谐振腔滤波器的灵敏度进行了分析,灵敏度分析结果对耦合谐振腔滤波器的设计和加工具有参考价值.Since Monte Carlo method is time-consuming when analyzing the sensitivity of the coupled cavity resonator filter, a novel method based on gradient formula for rapid analysis of sensitivity is presented in the paper. Based on the derived sensitivity analytical expression of the scattering parameters with respect to the terminal impedances and coupling coefficients, a numerical algorithm is realized in MATLAB language. The algorithm is effectively applied to the sensitivity analysis of a practical 5-order cross-coupled cavity resonator filter, which is of great significance for the design and fabrication of the filter.

关 键 词：耦合谐振腔滤波器 灵敏度分析 耦合系数 终端阻抗 

分 类 号：TN713.5[电子电信—电路与系统]