A resonator impedance de-embedding procedure

Author

Wheless, W. Perry, Jr.

Author_Institution

Dept. of Electr. Eng., Alabama Univ., Tuscaloosa, AL, USA

Volume

38

Issue

4

fYear

1989

fDate

8/1/1989 12:00:00 AM

Firstpage

864

Lastpage

869

Abstract

In many contemporary high-frequency circuits, a dielectric resonator is coupled to a microstrip line section, the ends of which constitute a two-port. A detailed procedure is presented for recovery of impedance values associated with the resonator from S-parameter measurements on the two-port with a vector network analyzer. The procedure is suitable for computer-assisted numerical processing, takes into account lossy propagation and moderate impedance vagaries along the microstrip line, and includes discontinuities in the coax-to-microstrip transitions. Resonant frequency, unloaded Q, and effective coupling coefficient can be determined subsequently from the de-embedded impedance values

Keywords

S-parameters; circuit analysis computing; dielectric resonators; impedance matching; microwave measurement; network analysers; strip line components; S-parameter measurements; coax-to-microstrip transitions; computer-assisted numerical processing; dielectric resonator; discontinuities; effective coupling coefficient; high-frequency circuits; lossy propagation; microstrip line section; microwave measurement; recovery of impedance; resonant frequency; resonator impedance de-embedding; strip line components; two-port; unloaded Q; vector network analyzer; Coupling circuits; Dielectric measurements; Equations; Fixtures; Impedance measurement; Microstrip filters; Microstrip resonators; Resonant frequency; Scattering parameters; Transmission line matrix methods;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.31005

Filename

31005