On the measurement of the complex permittivity of materials by an open-ended coaxial probe

descriptionPublicationkeyboard_double_arrow_right Article 01 May 1995Publisher:Institute of Electrical and Electronics Engineers (IEEE)Journal:IEEE Microwave and Guided Wave Letters, volume 5, pages 161-163 (issn: 1051-8207,

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Authors: D. Misra;

doi: 10.1109/75.374085

On the measurement of the complex permittivity of materials by an open-ended coaxial probe

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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. >

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