Electromagnetic Heating of a Human Head Model by a Half-Wavelength Dipole Antenna

International safety limits provide reference levels expressed in terms of electromagnetic field (EMF) strengths, which are derived from plane-wave exposure and evaluated in the absence of a person. With the recent capabilities of modern computers, hybrid Maxwell´s and heat- and mass-transfer equations have been solved in real-time for the human exposure to EMF problem. In this contribution, a human head slice extracted from the visible human project (VHP) head model is exposed to a half-wavelength dipole at a frequency of 1800 MHz. SAR and temperature increase values have been provided for all tissues along the propagation direction for several dipole-human head distances. The effect of the human thermoregulatory process in the thermal comfort is evaluated, including metabolism and blood flow along with some other heat transfer mechanisms. An important matching effect and the skull being a protection for thermal stress due to EMF exposure will be presented. As a result of the study, more accurate basic restrictions could be derived by combining SAR limits to the newly available temperature behaviour due to EMF exposure.