基于闭合环和短路棒的宽阻带带通滤波器  

Wide Stopband Bandpass Filter Based on Closed Loops and Short-circuited Bar

作　　者：马兴兵[1] 郑宏兴[1] 

机构地区：[1]天津职业技术师范大学天线与微波技术研究所,天津300222

出　　处：《电视技术》2012年第17期89-91,共3页Video Engineering

基　　金：天津市应用基础及前沿技术研究计划项目(12JCYBJC10500)

摘　　要：为减小微带宽阻带带通滤波器的结构尺寸,抑制滤波器的高次谐波干扰,拓宽滤波器阻带,提出一种新的基于闭合环和短路棒的紧凑型宽阻带带通滤波器。该滤波器采用闭合环和短路棒结构,将滤波器设计为改进型1/4波长谐振器结构的宽阻带带通滤波器,以达到抑制高次谐波,减小滤波器尺寸的目的。实验结果表明该方法具有良好的效果。In order to reduces the design size of microstrip wide stopband bandpass filter and achieves the spurious suppression and wide stopband, a new compact microstrip wide stopband bandpass filter based on closed loops and short-circuited bar is designed. This filter makes use of closed loops and short-circuited bar to obtain improved A/4 resonator structure and realize the wide stopband bandpass filter, and then spurious suppression and miniaturi- zation are achieved. Experimental results has demonstrated the designed filter available.

关 键 词：闭合环 短路棒 滤波器 开路线 宽阻带 

分 类 号：TN713.5[电子电信—电路与系统]