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IEEE Transactions on Microwave Theory and Techniques
Volume 48 Number 11, November 2000

Table of Contents for this issue

Complete paper in PDF format

Accurate Microwave Resonant Method for Complex Permittivity Measurements of Liquids

Kapilevich B. Yu, Senior Member, IEEE S. G. Ogourtsov, Student Member, IEEE V. G. Belenky, Member, IEEE A. B. Maslenikov and Abbas S. Omar Senior Member, IEEE

Page 2159.

Abstract:

In this paper, a method available for accurate measurements of lossy liquids is presented, tested on standard materials, and compared with the perturbation technique commonly adopted in cavity measurements. The method is based on numerical solving a complex characteristic equation. Realization of the method was done using an E010 cylindrical cavity. Results show that measurement errors may be decreased with application of the method presented. The method excludes uncertainties in complex permittivity determination when material has losses and high permittivity.

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