ANN and EM based models for fast and accurate modeling of excitation loops in combline-type filters

Author

Borji, A. ; Busuioc, D. ; Safavi-Naeini, S. ; Chaudhuri, S.K.

Author_Institution

Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada

Volume

3

fYear

2002

fDate

2-7 June 2002

Firstpage

2105

Abstract

A fast hybrid model for accurate modeling of excitation loops and taps in a class of coupled coaxial cavity filters is presented. The model consists of a lumped element equivalent circuit and a set of fast parametric models including an EM based model for mutual coupling and a neuromodel for parasitic inductance and capacitance of the coupling device. This model provides an ideal tool in synthesis and optimization of combline-type filters and diplexers to minimize the return loss and reduce the cost of post fabrication tunings.

Keywords

cavity resonator filters; electrical engineering computing; electromagnetic coupling; equivalent circuits; inductance; microwave filters; modelling; neural nets; passive filters; ANN based model; EM based model; coaxial cavity resonator; combline-type microwave filters; coupled coaxial cavity filters; diplexers; excitation loops; fast hybrid model; fast parametric models; lumped element equivalent circuit; mutual coupling; mutual inductance; neuromodel; parasitic capacitance; parasitic inductance; post fabrication tuning cost reduction; return loss minimisation; slot-coupled combline filters; taps; Circuit synthesis; Coaxial components; Cost function; Coupling circuits; Equivalent circuits; Filters; Inductance; Mutual coupling; Parametric statistics; Parasitic capacitance;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2002 IEEE MTT-S International

Conference_Location

Seattle, WA, USA

ISSN

0149-645X

Print_ISBN

0-7803-7239-5

Type

conf

DOI

10.1109/MWSYM.2002.1012285

Filename

1012285