一种基于模式匹配法的窄带Iris波导滤波器设计  

Design of a Narrow-Band Iris Waveguide Filter Based on Mode-Matching Method

作　　者：陈昌明[1] 黄刚[1] 刘勇[1] 

机构地区：[1]成都信息工程大学通信工程学院,成都610225

出　　处：《电子器件》2016年第3期517-521,共5页Chinese Journal of Electron Devices

基　　金：四川省教育厅重点项目(13ZA0087)

摘　　要：提出了一种基于模式匹配法的窄带Iris波导滤波器设计方法,通过引入Matlab优化使滤波器设计周期缩短了约1/3。设计的窄带滤波器相对带宽小于3%,且较好的克服了毫米波频段滤波器高频端带外抑制较差的难题。测试结果表明,该带通滤波器插入损耗小于0.8 d B,驻波比小于1.2,中心频率34.86 GHz,带外抑制52 d B@36.5 GHz,已被成功应用于某毫米波雷达通信系统中。A design method of narrow-band Iris waveguide filter based on Mode-matching is proposed. This design cycle of the filter is shortened a third by the help of Matlab optimization. The relative bandwidth of narrow-band filter is less than 3%. This filter overcomes the problem that high frequency out of band suppression is poor in the millimeter-wave band. The test results show that the insertion loss of the filter is less than 0.8 dB,voltage standing-wave ratio（VSWR）is better than 1.2,center frequency is 34.86 GHz,the out-of-band rejection is 52 dB at 36.5 GHz and it has been successfully used in a millimeter wave radar communication system.

关 键 词：模式匹配 Iris波导 MATLAB 窄带 毫米波 

分 类 号：TN713[电子电信—电路与系统]