Measurement and simulation of heat transfer into a human skin phantom

Reliable in-vitro millimeter and sub-millimeter wave exposure investigations need well characterized radiation sources, accurate phantom models and calibrated SAR/temperature-rising probes. A practical setup is presented for studies regarding the human skin exposure at frequencies above 30 GHz. A standard-gain horn antenna is used to provide a Gaussian beam and known field-intensity on the sample, together with an infrared camera to monitor the temperature variations. The measurements of the temperature distribution in the gel phantom, including uncertainty, are presented and compared with Finite Element simulations.