广义巴特沃思滤波器的综合  

Synthesis of General Butterworth Filter

作　　者：陈琦[1] 赵永久[1] 修建鹏 

机构地区：[1]西安电子科技大学机电工程学院,西安710071

出　　处：《现代雷达》2008年第3期80-82,共3页Modern Radar

基　　金：国家自然科学基金资助项目(60571059)

摘　　要：微波滤波器综合的出发点在于滤波函数的选择,滤波函数的性质决定了滤波器的响应。文中提出了一种广义的巴特沃思滤波函数,在保留其群时延上优势的同时,通过引入有限位置的传输零点,大大的改善巴特沃思函数的带外特性,使得其可以适应现代通信技术对微波滤波器的要求,在微波滤波器的实际设计中具有很好的应用价值。The choice of filtering functions is the base of the synthesis of microwave filer,and the response of filter is determined by the characteristics of filtering functions.In this paper,a general Butterworth filtering functions is presented,preserving the advantage of butterworth filtering functions at the group delay,and simultaneity ameliorate the characteristics out of the passband of butterworth filtering functions by introduce transmission zeros with finite positions,to make sure it could adapt the reques...

关 键 词：滤波函数 滤波器综合 群时延 

分 类 号：TN713[电子电信—电路与系统]