非等长微带SIR平行耦合带通滤波器的设计  

Design of Banpdpass Filters Using Non-Equal LengthMicrostrip SIR with Parallel Coupled Configuration

作　　者：林杞楠[1] 张雅绮[1] 吴志荣[2] 

机构地区：[1]天津大学电子信息工程学院,天津300072 [2]宁波职业技术学院信息工程系,宁波315800

出　　处：《微波学报》2002年第1期46-51,共6页Journal of Microwaves

摘　　要：本文提出应用非等长微带SIR（阶梯阻抗谐振器）构成平行耦合带通滤波电路的设计方法。它保持等长SIR滤波电路能够有效抑制高次谐波的特点，又增加了设计的灵活性。本文同时给出应用级联矩阵计算这种滤波电路工作衰减的公式．可以方便地分析宽范围的频率响应。Abstract: A design method for bandpass filters using non-equal length microstrip SlR (stepped impedanceresonators) with parallel coupled configuration is presented in this paper. It keeps the advantage of bandpass filtersusing parallel coupled equal length microstrip SIR for improving harmonic suppression and increasing the flexibilityin design procedure. The calculation formulas for attenuation of bandpass filters with parallel coupled SIR bycascade matrix are also given,which can be conveniently used to analyze wide-band frequency response.

关 键 词：阶梯阻抗 微带谐振器 平行耦合线 带通滤波电路 

分 类 号：TN713.02[电子电信—电路与系统]