Title :
On the measurement of the complex permittivity of materials by an open-ended coaxial probe
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Wisconsin Univ., Milwaukee, WI, USA
fDate :
5/1/1995 12:00:00 AM
Abstract :
A number of papers have appeared on the characterization of materials using a coaxial probe. In most cases, approximate admittance models have been used for this purpose. The present work compares two rigorous mathematical models for the aperture admittance. One of these relations is based on the variational principle while the other utilizes the method of moments. Muller´s method is then used to determine the complex permittivity of materials. The two procedures have been tested in the frequency range of 1-18 GHz
Keywords :
electric admittance; measurement theory; method of moments; microwave measurement; permittivity measurement; probes; variational techniques; 1 to 18 GHz; aperture admittance; complex permittivity; mathematical models; method of moments; open-ended coaxial probe; variational principle; Admittance measurement; Apertures; Coaxial components; Dielectric measurements; Equations; Frequency; Mathematical model; Moment methods; Permittivity measurement; Probes;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
