Computer-aided diagnosis and tuning of cascaded coupled resonators filters

Author

Hsu, Heng-Tung ; Yao, Hui-Wen ; Zaki, Kawthar A. ; Atia, Ali E.

Author_Institution

Dept. of Electr. & Comput. Eng., Maryland Univ., College Park, MD, USA

Volume

50

Issue

4

fYear

2002

fDate

4/1/2002 12:00:00 AM

Firstpage

1137

Lastpage

1145

Abstract

A model for the determination of the individual resonant frequencies and inter-resonator couplings of a system consisting of cascaded coupled resonators is presented. Measuring or computing the phase of the reflection coefficient of short-circuit terminated networks synthesizes all the inter-resonator couplings and resonant frequencies. The loading effect on the last resonator due to the unknown position of the short-circuit reference plane is accurately accounted for by a systematic method. A deterministic finite steps tuning method based on the model is developed. The method is proven successful experimentally and the noniterative nature of the method makes fully automatic tuning of filters possible

Keywords

cascade networks; circuit analysis computing; circuit tuning; coupled circuits; resonator filters; automatic tuning; cascaded coupled resonator filters; computer aided diagnosis; inter-resonator coupling; loading effect; reflection coefficient; resonant frequency; short-circuit terminated network; Circuits; Computer aided diagnosis; Extraterrestrial measurements; Fasteners; Microwave filters; Phase measurement; Reflection; Resonant frequency; Resonator filters; Tuning;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.993417

Filename

993417