Full-wave modeling of electric coupling probes in comb-line resonators and filters

Author

Wang, Chi ; Zaki, Kawthar A.

Author_Institution

Radio Frequency Syst Inc., Marlboro, NJ, USA

Volume

48

Issue

12

fYear

2000

fDate

12/1/2000 12:00:00 AM

Firstpage

2459

Lastpage

2464

Abstract

An electric coupling probe in comb-line resonators and filters is rigorously modeled by full-wave mode matching method. The coupling structure is considered as a cascaded network of the resonator and strip-line discontinuities and is solved by cascading the generalized scattering matrices of all the discontinuities. As a result, the electric probe couplings of both rectangular and cylindrical comb-line resonators and filters can be accurately determined. The validation and accuracy of the method are verified by comparing the numerical results with the measured data and are shown to be in good agreement

Keywords

S-matrix theory; comb filters; mode matching; probes; resonators; strip line discontinuities; waveguide filters; cascaded network; comb-line filter; comb-line resonator; electric coupling probe; full-wave mode matching model; ridge waveguide; scattering matrix; strip-line discontinuity; Conductors; Couplings; Filtering theory; Matched filters; Mode matching methods; Probes; Resonator filters; Scattering; Transmission line matrix methods; Wireless communication;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.898998

Filename

898998