半集总同轴腔体带通滤波器设计  

Design of semi-lumped coaxial cavity band-pass filter

作　　者：王孝卫 夏哲雷[1] 刘晓芳[1] 

机构地区：[1]中国计量学院信息工程学院,浙江杭州310018

出　　处：《电子元件与材料》2014年第9期69-71,共3页Electronic Components And Materials

摘　　要：提出了一种半集总同轴腔体带通滤波器结构,并设计了一个中心频率为2.35 GHz,相对带宽为4.25%的半集总同轴腔体带通滤波器。仿真结果表明,该滤波器通带内反射损耗小于–18 dB,插入损耗小于0.08 dB,在2.2GHz和2.5 GHz处带外抑制均小于–40 dB。该滤波器插入损耗低,结构简单紧凑,在移动通信系统中有一定的应用价值。A kind of semi-lumped coaxial cavity bandpass filter structure was applied to design a semi-lumped coaxial cavity bandpass filter with a center frequency of 2.35 GHz and a relative bandwidth of 4.25%. Simulation results show that the return loss is less than -18 dB, the insertion loss is less than 0.08 dB within the passband and the out band attenuation at 2.2 GHz and 2.5 GHz are both less than -40 dB. Moreover, the filter has low insertion loss, simple structure and a good application value in the mobile communication system.

关 键 词：半集总参数 带通滤波器 仿真 设计 同轴腔体 结构 

分 类 号：TN91[电子电信—通信与信息系统]