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Safety Assessment of UWB Radio Systems for Body Area Network by the {\rm FD}^{2}{\rm TD} Method

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3 Author(s)
De Santis, V. ; Dept. of Electr. & Comput. Eng., Univ. of L''Aquila, L''Aquila, Italy ; Feliziani, M. ; Maradei, F.

The paper deals with the numerical prediction of the specific absorption (SA) of ultra wideband (UWB) radio systems for wireless body area network (BAN). The electro-magnetic analysis is performed by a frequency-dependent finite difference time domain (FD2TD) method here proposed with a new formulation based on a total current density approach. A first order Debye approximation is used to model the frequency-dependent properties of the human body in the frequency range of the UWB signals. The proposed method permits to assess the specific absorption and power loss in the human body exposed to an UWB pulsed source. Different numerical models of the human bodies are finally considered in order to investigate safety aspects.

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Magnetics, IEEE Transactions on  (Volume:46 ,  Issue: 8 )