Title :
Accurate computer aided design of interdigital filters applying a coupling identification method
Author :
Saboureau, C. ; Bila, S. ; Baillargeat, D. ; Verdeyme, S. ; Guillon, P.
Author_Institution :
Inst. de Recherche en Commun. Opt. et Microondes, CNRS, Limoges, France
Abstract :
Interdigital filters are found to be difficult to adjust because of improper couplings that occur at high frequency. To solve this problem, a new optimization method for the design of high frequency interdigital filters is presented in this paper. This optimization method uses an accurate computer aided design method, based on the identification of each resonator coupling including parasitic ones. In order to show the feasibility of such a method an example of a 3.1 GHz band-pass filter around 18.95 GHz is studied.
Keywords :
band-pass filters; circuit CAD; circuit optimisation; identification; linear network synthesis; microstrip filters; microwave filters; passive filters; resonator filters; strip line filters; 18.95 GHz; 3.1 GHz; CAD method; HF interdigital filters; band-pass filter; computer aided design; coupling identification method; optimization method; parasitic couplings; resonator coupling; Band pass filters; Bandwidth; Design methodology; Frequency; Microstrip components; Microstrip filters; Microwave filters; Optimization methods; Resonator filters; Stripline;
Conference_Titel :
Microwave Symposium Digest, 2002 IEEE MTT-S International
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-7239-5
DOI :
10.1109/MWSYM.2002.1012281
