Biomedical Signals and Sensors III by Eugenijus Kaniusas

Author:Eugenijus Kaniusas
Language: eng
Format: epub
ISBN: 9783319749174
Publisher: Springer International Publishing

The quantity PSAR is used as the basic restriction in the higher frequency range of 100 kHz–10 GHz to account for the energy deposition within tissue out of the traveling electromagnetic wave. Please recall that the high frequency in the range of MHz couples electric and magnetic fields through their derivatives (2.86). The basic restriction PSAR accounts for thermal excitation and is used to prevent excessive heating of local body regions (head, trunk, and limbs) and of the whole body .

The incident power density is used in the range from 10 GHz to 300 GHz to account for a superficial absorption of the electromagnetic energy and to prevent heating of tissues at or near to the body surface (Section “Incident Electromagnetic Fields”).

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