微波滤波器耦合矩阵综合方法改进  

Improvement of coupling matrix synthesis method of microwave filter

作　　者：徐晨阳 肖中银[1] XU Chen-yang;XIAO Zhong-yin(School of Communication and Information Engineering,Shanghai University,Shanghai 200072,China)

机构地区：[1]上海大学通信与信息工程学院,上海200072

出　　处：《电子设计工程》2018年第20期72-76,81,共6页Electronic Design Engineering

摘　　要：该文分析了现有的通过广义切比雪夫滤波器的特征多项式优化滤波器耦合矩阵的方法及其目标函数,对优化旋转角度的优化方法提出了一种改进方案。首先对耦合矩阵做预处理,缩短优化时间。再对优化旋转消元角度的方法进行改进,通过调整选择消元的顺序和旋转点,使优化更加快速有效,提高了优化效率和优化效果。用这种改进的方法设计了2种滤波器,并分别与电路仿真软件仿真结果和实际样品的测试结果进行对比,证明了这种方法的可行性。By analyzing the current optimization method of synthesis cross-coupling of quasi-Chebyshev filter, a new proposal of optimizing rotation angle was presented. Firstly, the coupling matrix is preprocessed to shorten the optimization time. Then, by adjusting the order of selecting the elimination and the rotation point, the optimization is more rapid and effective, improving the optimization efficiency. Based on the improved method, two novel filters are designed. The simulated results are compared with the measured results, which proves the feasibility of this method.

关 键 词：切比雪夫 滤波器 耦合矩阵 优化 

分 类 号：TN713[电子电信—电路与系统]