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2010-07-29
Unique Permittivity Determination of Low-Loss Dielectric Materials from Transmission Measurements at Microwave Frequencies
By
Progress In Electromagnetics Research, Vol. 107, 31-46, 2010
Abstract
A non-resonant microwave method has been proposed for accurate complex permittivity determination of low-loss materials. The method uses two measurement data of the magnitude of transmission properties of the sample. While the first datum must correspond to a frequency point resulting in a maximum magnitude of transmission properties, the other can be any datum at a frequency different than the first datum and not far distant from the first datum. Two closed-from expressions are derived for a good initial guess using the above data. The limitations of each expression are discussed. The method has been validated by transmission measurements at X-band (8.2-12.4 GHz) of a low-loss sample located into a waveguide sample holder.
Citation
Ugur Cem Hasar, "Unique Permittivity Determination of Low-Loss Dielectric Materials from Transmission Measurements at Microwave Frequencies," Progress In Electromagnetics Research, Vol. 107, 31-46, 2010.
doi:10.2528/PIER10060805
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