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Finite Element Calculation of Microwave Absorption by the Cranial Structure

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1 Author(s)
Morgan, M.A. ; Department of Electrical Engineering, Naval Postgraduate School

Using an axisymmetric inhomogeneous lossy dielectric model of the human cranial structure, calculations yielding interiorabsorbed power density spatial distributions and whole-body cross sections are presented. These computations are preformed by way of a finite element implementation of the coupled azimuthal potential formulation. Results are considered for two angles of plane wave incidence, with two orthogonal polarizations, at the frequencies of 1 and 3 GHz. Comparisons are made with a simpler multilayered spherical model. Attention is given to the sensitivity of "hot spot" intensities to incident field orientations and model parameter uncertainties.

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Biomedical Engineering, IEEE Transactions on  (Volume:BME-28 ,  Issue: 10 )