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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2008-10-27
Application of a Coaxial-Fed Patch to Microwave Non-Destructive Porosity Measurements in Low-Loss Dielectrics
By
Alessandra Zucchelli,

    Dr. Alessandra Zucchelli

    Istituto di Scienza e Tecnologie dell Informazione Alessandro Faedo

    Italy

    Homepage

Massimo Chimenti,

    Dr. Massimo Chimenti

    Istituto di Scienza e Tecnologie dell Informazione Alessandro Faedo

    Italy

    Homepage

Edoardo Bozzi,

    Dr. Edoardo Bozzi

    Istituto di Scienza e Tecnologie dell Informazione Alessandro Faedo

    Italy

    Homepage

Paolo Nepa

    Dr. Paolo Nepa

    Department of Information Engineering

    University of Pisa

    Italy

    Homepage

Progress In Electromagnetics Research M, Vol. 5, 1-14, 2008
doi:10.2528/PIERM08100302 | Google Scholar

Abstract
An air-spaced coaxial-fed patch antenna to be used as a microwave sensor for non-destructive porosity measurements in lowloss dielectric materials is presented. The variation of the patch resonant frequency when it is put on the surface of the material under test is used to estimate the dielectric permittivity. Then, a standard two-phase mixture model is used to derive the material degree of porosity from the above permittivity estimate. Measurements at the 2.4 GHz ISM frequency band have been carried out on a set of polymeric samples with artificially induced porosity. The specific choice for the operating frequency is related to the final goal of applying the above microwave sensor for quality control of ceramic materials during the production process.
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Citation
Alessandra Zucchelli, Massimo Chimenti, Edoardo Bozzi, and Paolo Nepa, "Application of a Coaxial-Fed Patch to Microwave Non-Destructive Porosity Measurements in Low-Loss Dielectrics," Progress In Electromagnetics Research M, Vol. 5, 1-14, 2008.
doi:10.2528/PIERM08100302
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