Broad-band simultaneous measurement of complex permittivity and permeability using a coaxial discontinuity

Author

Belhadj-Tahar, Nour-eddine ; Fourrier-Lamer, Arlette ; De Chanterac, Hélie

Author_Institution

Lab. de Dispositifs Infrarouge et Microondes, Univ. Pierre et Marie Curie, Paris, France

Volume

38

Issue

1

fYear

1990

fDate

1/1/1990 12:00:00 AM

Firstpage

1

Lastpage

7

Abstract

A technique for simultaneously measuring the real and imaginary parts of both the permittivity and the permeability of a given material is discussed. A gap in a coaxial line is filled with the material under test. Complex permittivity and permeability are computed from the S-parameter (S₁₁ and S₂₁) measurement made on the gap, taking into account higher-order modes excited at the discontinuity. Measured ε_r and μ_r data for several materials are presented from 45 MHz up to 18 GHz. This technique shows good agreement between calculated and generally accepted values

Keywords

S-parameters; magnetic permeability measurement; microwave measurement; permittivity measurement; 45 MHz to 18 GHz; S-parameter measurement; broadband measurement; coaxial discontinuity; coaxial line gap; complex permittivity; higher-order modes; permeability; Coaxial components; Conducting materials; Dielectric measurements; Electromagnetic measurements; Frequency; Materials testing; Permeability measurement; Permittivity measurement; Symmetric matrices; Transmission line matrix methods;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.44149

Filename

44149