Safety aspects of human exposure to ultra wideband radar fields

This paper addresses the safety aspects of people exposed to the field emitted by ultra wideband (UWB) radar operating both in the spatial environment and on ground. The basic restrictions and field exposure levels reported in the ICNIRP safety guideline are considered, and the compliance of fields transmitted by a UWB radar with these limits is verified. Furthermore, the interaction of the radiated field with the human body is studied considering a layered body model. The obtained results show that both basic restrictions and reference levels issued by ICNIRP are largely satisfied, and that less than half of the incident power is absorbed in the body.