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Article Dans Une Revue IEEE Transactions on Instrumentation and Measurement Année : 2014

Geometrical optics-based model for dielectric constant and loss tangent free-space measurement

Résumé

A microwave free-space reflection method for determining the complex permittivity of planar dielectric materials is demonstrated. The method makes use of the measurement of the near-field microwave reflection coefficient of a metal-backed sample. The modeling of the structure and its calibration are based on geometrical optics considering spherical electromagnetic waves propagating through the material. The technique that presents a number of features such as low-cost, compactness, robustness, and reliability is a good candidate for industrial applications. As a demonstration, dielectric parameters extraction of building materials is experimentally demonstrated for wireless local area network operations in the 2.45- and 5-GHz bands.
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Dates et versions

hal-01005621 , version 1 (13-06-2014)

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Kamel Haddadi, Tuami Lasri. Geometrical optics-based model for dielectric constant and loss tangent free-space measurement. IEEE Transactions on Instrumentation and Measurement, 2014, 63, pp.1818-1823. ⟨10.1109/TIM.2013.2297811⟩. ⟨hal-01005621⟩
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