Numerical RF dosimetry in 2D and 3D in vitro skin cell cultures

The new developments of wireless devices operate at higher radiofrequencies with respect to the past therefore larger exposure of the human skin to such electromagnetic fields is expected. In the present work, a numerical dosimetry analysis was carried out to identify the optimal exposure conditions, in terms of efficiency and uniformity of SAR distribution of 2D and 3D in vitro skin cell cultures to 1950 MHz and 2450 MHz. At 2450 MHz the RF exposures were simulated in Wire Patch Cell (WPC) exposure system, at 1950 MHz a standard waveguide exposure system was used. Both WPC and waveguide systems provide a good efficiency, in terms of induced SAR in the skin samples to incident power.