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PIER PIER B PIER C PIER M PIER Letters
2011-01-25
Coupling Impedance Between Planar Coils Inside a Layered Media
By
Claudio Carretero,

    Prof. Claudio Carretero

    Department of Applied Physics

    University of Zaragoza

    Spain

    Homepage

Rafael Alonso,

    Dr. Rafael Alonso

    Dep. Fisica Aplicada

    Universidad de Zaragoza

    Spain

    Homepage

Jesus Acero,

    Dr. Jesus Acero

    Department of Ingenieria Electrionica y Comunicaciones

    University of Zaragoza

    Spain

    Homepage

Jose Miguel Burdio

    Dr. Jose Miguel Burdio

    Dep. Ingenieria Electrionica y Comunicaciones

    Universidad de Zaragoza

    Spain

    Homepage

Progress In Electromagnetics Research, Vol. 112, 381-396, 2011
doi:10.2528/PIER10112911
Abstract
In this paper a semi-analytical representation of the coupling impedance between coils composed of filamentary turns located between two layered media is provided on the basis of the spectral expansion of the fields involved in the system. Both media are composed of several layers of homogeneous materials characterized by their physical properties occupying, respectively, a half-space bounded by a plane. The domain in the middle, where the coils are placed, has vacuum properties. The development is focused on misaligned circular coils placed in parallel planes with respect to the media boundaries. Two different behavioral descriptions have been considered: first, the system is made up entirely of magnetic insulators and the coupling impedance is therefore purely inductive; second, at least one medium is an electrical conductor and, as a consequence, an additional resistive component emerges when the coupling impedance is evaluated. In the latter case, the coupling impedance exhibits a frequency dependence due to the dispersive effects associated with the induced currents generated in the conductive media. The model developed is verified by means of a comparison between numerical and experimental results.
Citation
Claudio Carretero, Rafael Alonso, Jesus Acero, and Jose Miguel Burdio, "Coupling Impedance Between Planar Coils Inside a Layered Media," Progress In Electromagnetics Research, Vol. 112, 381-396, 2011.
doi:10.2528/PIER10112911
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