S波段电容加载型同轴腔体滤波器的设计  

Designer of S-band Capacity-loaded Coaxial Cavity Filter

作　　者：雷光[1] 王培章[2] 许舵[1] 

机构地区：[1]解放军理工大学通信工程学院研究生4队,江苏南京210007 [2]解放军理工大学通信工程学院卫星通信系,江苏南京210007

出　　处：《军事通信技术》2010年第3期64-66,80,共4页Journal of Military Communications Technology

摘　　要：文中设计了一种电容加载型同轴滤波器,该滤波器是一种工作在S波段的窄带带通滤波器,通过机械调节谐振腔开路端和谐振腔之间的调谐螺钉来改变其谐振频率和带宽。根据理论分析,设计和制作了三腔和四腔同轴滤波器,并进行了测试和比较。结果表明,两种滤波器都有很好的滤波性能,其中四腔滤波器带外抑制性能优于三腔滤波器。An S-band capacity-loaded coaxial cavity filter was proposed.The center frequency and bandwidth of the filter were changed by tuning screws,among which some were placed at the open end of every resonator and the others were located between the open ends of every two resonators.Both cascaded triplet filter and cascaded quadruplet cavity filter were designed and fabricated.Experimental results show that the cascaded quadruplet cavity filter has the advantage of enhancing the rejection of stop band.

关 键 词：电容加载 同轴滤波器 窄带 

分 类 号：TN7[电子电信—电路与系统]