基于单端输入阻抗零极点的耦合系数提取方法  

Extraction Method for Coupling Coefficients Based on the Zero-pole Frequencies of the Single-ended Input Impedance

作　　者：胡旭[1] 李刚[2] 

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

出　　处：《湖北文理学院学报》2015年第8期19-22,共4页Journal of Hubei University of Arts and Science

基　　金：湖北省教育厅科学技术研究项目(Q20152605);湖北文理学院博士科研基金项目(2013B006)

摘　　要：针对优化方法提取滤波器耦合系数耗时太长的问题,从单端输入阻抗的零极点角度进行分析,详细推导了耦合系数和谐振腔频率的迭代计算公式.并应用该算法对4阶Chebyshev滤波器的耦合系数进行了提取分析,提取结果与理论结果吻合良好,证明该方法是正确有效的.The optimization extraction method for coupling coefficients is time-consuming. From the view of the zero-pole frequencies of the singled-ended input impedance, iterative calculation formulas to the coupling coefficients and resonator frequencies were deduced in detail. The algorithm is effectively applied to the extraction analysis of a practical 4-order Chebyshev resonator filter. Results are in good agreement with theoretical results, which proved the correctness and validity of the method.

关 键 词：滤波器 单端输入阻抗 反射系数 耦合系数 零极点频率 

分 类 号：TN713.5[电子电信—电路与系统]