一种含镜频抑制作用的微带发卡滤波器的设计  

Design of a micro-strip hairpin filter with image-reject function

作　　者：李俊鹏[1] 杨明武[1] 

机构地区：[1]合肥工业大学应用物理系,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2009年第4期550-552,共3页Journal of Hefei University of Technology：Natural Science

基　　金：安徽省自然科学基金资助项目(05040202);安徽省教育厅自然科学重点科研计划资助项目(2006KJ026A)

摘　　要：镜频干扰在变频系统中影响很大,通常使用高品质的射频镜像抑制滤波器和中频的信道选择滤波器来处理高频信号。文章结合传统微带平行耦合滤波器的设计方法,使用ADS软件优化设计出一种具有镜频抑制作用的微带发卡式带通滤波器,同时还可以满足带内插损和带外抑制的设计要求。最后通过样品实测及调试,验证了与仿真模型的特性参数是近似一致的,对工程应用有一定的指导意义。The disturbance of image frequency sways badly in the frequency conversion system. Usually, the radio frequency（RF） image-reject filter with high quality and the intermediate frequency（IF） channel-selected filter are chosen to process the high-frequency signal. In this paper, an image-reject hairpin ban＆pass filter is designed using the software ADS on the basis of the traditional theory of parallel coupled micro-strip filters. The design satisfies the need of the insert loss and the restraint of ban＆stop. The experimental result shows that the S parameter from ADS simulation is almost the same as that from measurement, which is valuable in engineering applications.

关 键 词：镜频抑制 发卡式滤波器 ADS软件 

分 类 号：TN713.5[电子电信—电路与系统]