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Evaluation of Resonance Properties of the Human Body Models Situated in the RF Field

Keywords: Absorption , CST MW studio , human body model , resonance properties , RF field , SAR.

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Abstract:

The radio-frequency (RF) electromagnetic field absorption in the human body model is investigated in this article. Absorption of prolate model of the biological body exhibits resonance properties in the case of so called E polarization. This occurs in the arrangement when the longitudinal axis of the body is parallel with an electrical component of the electromagnetic field. Absorption properties of a homogeneous human model have been explored in the frequency range from 20 MHz to 500 MHz in the CST Microwave Studio programme environment. The simulation results of RF field absorption in the model of the human body are presented for ellipsoidal, cylindrical and anthropomorphic Laura model shapes, and for various heights and widths of the model body. The values of the resonance frequency and also whole-body absorption values at these frequencies are evaluated.

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