Ka频段极窄通带波导滤波器  

NARROW PASS-BAND WAVEGUIDE FILTERS IN KA BAND

作　　者：李胜先[1] 傅君眉[1] 吴须大[2] 

机构地区：[1]西安交通大学电子与信息工程学院,陕西西安710049 [2]西安空间无线电技术研究所,陕西西安710100

出　　处：《红外与毫米波学报》2007年第5期359-361,共3页Journal of Infrared and Millimeter Waves

基　　金：十五国防预先研究基金资助项目(Y01-GX-01)

摘　　要：提出了一种Ka频段具有极窄通带的波导带通滤波器方案.采用模式匹配法对滤波器进行全波分析,设计并研制了一只相对带宽约0.1%的Ka频段窄带带通滤波器,典型性能为中心频率处插入损耗小于2.1dB,带内驻波比小于1.20:1,损耗起伏小于0.30dB,测试结果与全波分析数据一致,说明方案有效.A kind of waveguide band-pass filters with very narrow pass-band in Ka-band was presented. The filter was simulated by mode-matching technique（MMT）. A Ka-band waveguide filter with 0.1% relative bandwidth was designed and realized. The typical performances are that the insertion loss at center frequency is less than 2. ldB and VSWR in-band is less than 1.20 ： 1 and loss variation is less than 0.30dB. The measured results keep good agreement with the full-wave simulated data. It shows that this method is valid.

关 键 词：波导滤波器 窄通带 模式匹配法 KA频段 

分 类 号：TN830.3[电子电信—信息与通信工程]