Wideband dielectric characterization using a dielectric filled cavity adapted to the end of a transmission line

Author

Saed, Mohammad A. ; Riad, Sedki M. ; Davis, William A.

Author_Institution

Dept. of Electr. Eng., State Univ. of New York, New Paltz, NY, USA

Volume

39

Issue

3

fYear

1990

fDate

6/1/1990 12:00:00 AM

Firstpage

485

Lastpage

491

Abstract

The concept, analysis, and testing of a technique for characterizing dielectric materials over a wide band of frequencies are presented. The technique utilizes a cylindrical cavity completely filled with a sample of the dielectric material under test and adapted to the end of the precision air line. The complex permittivity of the filling dielectric is derived from the measured reflection coefficient. This technique offers great advantages over conventional methods where the sample is placed in a resonant cavity or inserted in a transmission line

Keywords

dielectric measurement; dielectric-loaded waveguides; microwave reflectometry; complex permittivity; cylindrical cavity; dielectric filled cavity; microwave reflectometry; precision air line; reflection coefficient; testing; transmission line; wideband measurement; Dielectric materials; Dielectric measurements; Filling; Frequency; Materials testing; Permittivity measurement; Reflection; Resonance; Transmission line measurements; Wideband;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.106277

Filename

106277