Extraction of coupling matrix of Generalized Chebyshev filter Based on MATLAB

摘要

In this paper we present a piece of software of extracting coupling matrix of generalized chebyshev filter based on MATLAB. Our software can obtain coupling matrix of generalized chebyshev filter through index which has been given. In order to obtain the coupling matrix, a method is presented that the transfer and reflection coefficients are expressed by N-polynomials. Then the frequency response of this filter is derived and further more the the coupling matrix is extracted. We present a method which can validate the correctness of our software directly using Ansoft Designer.