A technique for optimizing the band-edge characteristics of elliptic function filter
WANG Tian1, Celestino A Corral3, YANG Shi-zhong2 ( 1. Computer Science and Information Engineering College of Chongqing Technology and Business University, Chongqing 400067, China; 2. Communication Engineering College of Chongqing University, Chongqing, 400044, China; 3. Motorola Inc., Plantation, Florida, 33322, USA )
In this paper, some thoroughly research about the technique for optimizing the band-edge characteristic of elliptic function filter are presented, and detail theory analysis 、algorithm and design example of a novel method are described. This proposed technique, which minimizes the residue value of filter order, allows designer to maximize the band-edge selectivity (BES) of elliptic filters without increasing filter order by given additional calculation steps, so that effectively narrows the transition band.