Measurement of complex permittivity and permeability and thickness of multilayered medium by an open-ended waveguide method

Author

Tantot, Olivier ; Chatard-Moulin, Michel ; Guillon, Pierre

Author_Institution

Inst. de Recherche en Commun. Opt. et Microondes, Limoges, France

Volume

46

Issue

2

fYear

1997

fDate

4/1/1997 12:00:00 AM

Firstpage

519

Lastpage

522

Abstract

A circular waveguide radiating into a layered medium is used for the determination of permittivity and permeability of materials. Better accuracies are obtained by modeling an air gap between the hanged waveguide and material. Simultaneous determination of complex permittivity and thickness of the material is also possible. Theoretical results have been compared with those obtained by the Finite Element Method. Many measurement have been made on a few materials with various dielectric and magnetic losses and the results have been comparable to those obtained using the well known free space method of Gaussian focused beams

Keywords

circular waveguides; finite element analysis; magnetic permeability measurement; permittivity measurement; thickness measurement; Finite Element Method; Gaussian focused beams; air gap; circular waveguide; complex permittivity measurement; dielectric measurement; hanged waveguide; layered medium; modeling; multilayered medium; open-ended waveguide; permeability measurement; thickness measurement; Dielectric loss measurement; Dielectric materials; Dielectric measurements; Finite element methods; Loss measurement; Magnetic materials; Permeability measurement; Permittivity measurement; Thickness measurement; Waveguide discontinuities;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.571900

Filename

571900