Non-resonant Permittivity Measurement Methods

The measurement of the dielectric properties of materials has been applied in non-destructive tests, humidity measurement, soil analysis and even cancer detection. The methods have been developed for over 70 years based on the interaction of the electromagnetic waves with the material under test. This work presents a general model of scattering parameters for non-resonant methods of transmission/reflection and single-port reflection. Equations for determining permittivity are obtained. New equations for short-circuited load and coupled load in the double reflection method are presented.

Index Terms
Microwave measurements; permittivity; short-circuit transmission line method; transmission/reflection method

Authorship

Sergio L. S. Severo

Federal Institute of Science and Technology — IFSUL, Pelotas — RS, Brazil, sergiosevero@pelotas.ifsul.edu.brFederal Institute of Science and Technology — IFSULBrazilPelotas, RS, BrazilFederal Institute of Science and Technology — IFSUL, Pelotas — RS, Brazil, sergiosevero@pelotas.ifsul.edu.br

Álvaro A. A. de Salles

Electrical Engineering, Federal University of Rio Grande do Sul — UFRGS, Porto Alegre, RS, Brazil, aasalles@ufrgs.brFederal University of Rio Grande do Sul — UFRGSBrazilPorto Alegre, RS, BrazilElectrical Engineering, Federal University of Rio Grande do Sul — UFRGS, Porto Alegre, RS, Brazil, aasalles@ufrgs.br

Bruno Nervis

Electrical Engineering, Federal University of Rio Grande do Sul — UFRGS, Porto Alegre, RS, bruno.nervis@ufrgs.br, braian.zanini@ufrgs.brFederal University of Rio Grande do Sul — UFRGSBrazilPorto Alegre, RS, BrazilElectrical Engineering, Federal University of Rio Grande do Sul — UFRGS, Porto Alegre, RS, bruno.nervis@ufrgs.br, braian.zanini@ufrgs.br

Braian K. Zanini

SCIMAGO INSTITUTIONS RANKINGS

Figures | Formulas

Figures (8)
Formulas (54)