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Progress In Electromagnetics Research
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A METRIC FUNCTION FOR FAST AND ACCURATE PERMITTIVITY DETERMINATION OF LOW-TO-HIGH-LOSS MATERIALS FROM REFLECTION MEASUREMENTS

By U. C. Hasar and E. A. Oral

Full Article PDF (204 KB)

Abstract:
We have derived a one-variable metric function for fast and accurate complex permittivity extraction of low-to-high-loss materials using reflection-only microwave non-resonant measurements at one frequency. The metric function can be modified to facilitate fast computation of the complex permittivity of materials for various applications (e.g., relative complex permittivity measurement of low-loss materials). It is useful as a measurement tool for broadband measurements of complex permittivity of samples with substantiate lengths. In addition, the method is applicable for measurement of complex permittivity of dispersive materials or complex permittivity of non-dispersive samples in limited frequency-band applications, since it is based on point-by-point (or frequency-byfrequency) extraction. It is validated by a numerical analysis and measurements of a liquid sample.

Citation:
U. C. Hasar and E. A. Oral, "A Metric Function for Fast and Accurate Permittivity Determination of Low-to-High-Loss Materials from Reflection Measurements," Progress In Electromagnetics Research, Vol. 107, 397-412, 2010.
doi:10.2528/PIER10071308
http://www.jpier.org/PIER/pier.php?paper=10071308

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