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Contactless Microwave Technique Based on a Spread-Loss Model for Dielectric Materials Characterization

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5 Author(s)
Haddadi, K. ; Inst. d''Electron., CNRS, Villeneuve-d''Ascq ; Wang, M.M. ; Benzaim, O. ; Glay, D.
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A free-space method without any focusing mechanisms for determining the complex permittivity of dielectric materials is demonstrated. A model based on geometrical optics is developed for the propagation of a spherical electromagnetic wave through a material. The proposed method implemented using a four-port reflectometer associated to a pyramidal horn antenna is validated through an application related to the moisture measurement of a sample of cellular concrete.

Published in:

Microwave and Wireless Components Letters, IEEE  (Volume:19 ,  Issue: 1 )

Date of Publication:

Jan. 2009

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