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.
出处
《电子器件》
CAS
北大核心
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)
