X波段腔体带通滤波器的设计与实现

Design and implementation of X-band cavity band-pass filter

通过耦合系数法设计滤波器,并通过HFSS进行精确仿真,采用时域调试法完成调试,大大缩短了研制周期,实现了X波段内三个不同中心频率的腔体带通滤波器,具有相对较高的中心频率且腔数多达10。经测试表明,所有滤波器均具有较低的通带插入损耗和较高的带外抑制。

In this paper,the coupling coefficient technique is adopted to design a cavity band-pass filter of three different center frequencies in X-band,which has a relatively high center frequency and ten cavities.The filter is simulated with HFSS.And then the time domain debugging method is used to debug the filter.The design method can shorten product manufacturing cycle.The test results show that all filters have the advantages of low insertion loss in band and high rejection out of band.