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Permittivity Measurement and Anisotropy Evaluation of Dielectric Materials at Millimeter-waves

Fernandes, C. A. ; Costa, J.R.

Permittivity Measurement and Anisotropy Evaluation of Dielectric Materials at Millimeter-waves, Proc IMEKO World Congress, Lisboa, Portugal, Vol. -, pp. - - -, September, 2009.

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Abstract
This paper describes the design and use of an open Fabry-Perot resonator to evaluate the degree of anisotropy of dielectric material samples at millimeter-waves. The proposed implementation not only allows identifying the orientation of the dielectric principal axes but also determining the complex permittivity values along these axes.