一种TE_(021)模高Q值滤波器设计  

A design of TE_(021) mode high Q filter

作　　者：夏亚峰[1] 李世康 许飞[1] 王永宁[1] 薛亚杰[1] XIA Yafeng;LI Shikang;XU Fei;WANG Yongning;XUE Yajie(Academy of Space Electronic Information Technology,Xi’an 710100,China)

机构地区：[1]西安空间无线电技术研究所,陕西西安710100

出　　处：《电子设计工程》2022年第1期175-178,共4页Electronic Design Engineering

摘　　要：文中介绍了一种新的高Q值滤波器,该滤波器具有窄带高Q值的特点。为了提高Ka、Q、V频段窄带滤波器Q值,提升调试性能,微波谐振腔体采用了高次模式TE_(021)模,一方面可以保证产品的高Q值,另一方面谐振腔体具有了较大的腔体体积,便于滤波器调试,大大降低了对机械加工精度的要求。通过合理选择腔体尺寸,从而实现了该模式谐振腔体的带通滤波器。根据该滤波器的物理结构、理论分析和仿真设计基础,进行了电磁场全波分析,加工生产了一台Ka频段滤波器,测试其电性能,得出其Q值高于20000的结果。A new high Q filter which has the characteristics of narrow band high Q is introduced.In order to improve the spectrum Ka,Q,V narrow-band filter Q value,enhance the purpose of debugging performance,microwave resonant cavity TE_(021)model adopted the high order mode,on the one hand can guarantee the high Q value,on the other hand the resonant cavity with the larger cavity volume,easy to filter the debugging,greatly reduces the requirement for precision machining.The band-pass filter of this mode resonator is realized by selecting proper cavity size.Based on the physical structure,theoretical analysis and simulation design of the filter,the full wave analysis of electromagnetic field is carried out,and a Ka band filter is produced.The electrical performance of the filter is tested,and the result of its Q value is higher than 20000 is obtained.

关 键 词：TE_(021) 高Q值 微波滤波器 卫星通信 

分 类 号：TN6[电子电信—电路与系统]