新型微带带通滤波器设计  

Design of new type of microstrip bandpass filter

作　　者：刘青爽[1] 韩莉[1] 薄娟[1] 刘丽红[1] 

机构地区：[1]中国矿业大学信息与电气工程学院,江苏徐州221008

出　　处：《电子设计工程》2009年第11期89-90,共2页Electronic Design Engineering

摘　　要：提出一种新型微带带通滤波器设计,它是由带有J-变频器的零阶谐振ZOR(zeroth-order resonant)系统构成。零阶谐振系统以互补分裂谐振环和一系列沟道组成的左手材料LHM(Left-Handed Material)为基本单元,在传统设计的基础上进行改进,得到适合具有严格设计要求的滤波器设计使用模型,并给出此零阶谐振系统的共振频率和导纳斜率参数的确定方法。实验表明,该微带带通滤波器的模拟量与测量之间存在最佳关系,并具有高选择性能、对称的响应曲线以及良好的通带带宽控制性能。A new type of microstrip bandpass filters is proposed,which is composed of the zeroth-order resonant （ZOR） system of J-inverters. The ZOR uses the left-handed material （LHM）as unit cells,which is composed of complementary split ring resonators and series gaps. On the basis of traditional design, a bandpass filter （BPF）is designed.And the method to determine the resonant frequency and susceptance slope parameter is proposed.Experimental verification is provided and a good agreement has been found between the simulation and measurement,the proposed BPF has much better selectivity, more symmetrical responses and controllable bandwidth.

关 键 词：微波技术 带通滤波器(BPF) 互补分裂谐振环(CSRR) 零阶谐振(ZOR) 共振频率 导纳谐振参数 

分 类 号：TN713[电子电信—电路与系统]