新型小型化超宽上阻带双频带通滤波器的设计  

A Novel Compact Ultra Wideband Upper-stopband Dual-band Bandpass Filter

作　　者：张瑞[1] 周希朗[1] 范海军[1] 

机构地区：[1]上海交通大学射频与微波技术研究中心,上海200240

出　　处：《价值工程》2012年第12期187-187,共1页Value Engineering

摘　　要：本文使用并联短截线结构获得5.7GHZ的通带,再引入SIR谐振器结构,获得2.4GHZ的通带。SIR谐振器耦合作用到微带传输结构上,所以,两种谐振结构相互独立,能方便的调整两个通带的中心频点。此外,两种谐振结构在阻带上相互抑制,获得极宽的上阻带性能。本文在输入、输出端口附近又引入并联短截线,使得上阻带性能更加优异。最终测量结果和仿真结果吻合。In this paper, we get a dual-band mierostrip band pass filter, which are 2.4GHZ and 5.7GHZ,with shunt stub and SIR structures. The SIR resonators are parallel to the mierostrip structures, so two kinds of resonators are separate and the center frequencies can be easily adjusted. Besides, we can get ultra wide upper-stopband. The shunt stub is induced near the input and output port to get better stopband performance. Finally, the measured results validate the proposed design.

关 键 词：双频滤波器 带通滤波器 并联短截线 阶跃阻抗谐振器 

分 类 号：TP31[自动化与计算机技术—计算机软件与理论]