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Evaluation of electromagnetic power deposition in a spherical multilayer head in the near field of a linear antenna

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Abstract

The canonical problem of the radiation of an elementary dipole close to a stratified sphere representing a simplified model of human head is investigated in this paper. The proposed approach is a flexible method of investigation about the influence on Specific Absorption Rate (S.A.R.) evaluation of tissue dielectric parameters and geometry as well as a useful tool to test numerical codes. The solution of the electromagnetic (e.m.) problem is achieved in a closed form; results highlight the position of maximum S.A.R. values and their dependence on frequency: for particular layer thicknesses and dielectric parameters, the maximum absorption can occur in the frequency range of cellular phones.

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Authors and Affiliations

  1. Dipartimento di Elettronica ed Automatica, Universitá di Ancona, Via Brecce Bianche, 60131, Ancona, Italy

    Graziano Cerri, Roberto De Leo & Giacomo Rosellini

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  1. Graziano Cerri
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  2. Roberto De Leo
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  3. Giacomo Rosellini
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Cerri, G., De Leo, R. & Rosellini, G. Evaluation of electromagnetic power deposition in a spherical multilayer head in the near field of a linear antenna. Wireless Networks 3, 499–510 (1997). https://doi.org/10.1023/A:1019110829496

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