Abstract
When an antenna is located close to a lossy medium, nearfield interactions appear and may modify the incident electromagnetic field. In this stydy, we analyse for the first time analyticaly and numericaly the impact of antenna/human body interactions on the absorbed power density (APD) at 60 GHz using a skin-equivalent model. To this end, equivalent sources and patch antenna arrays are used. The results demonstrate that the antenna/body interactions result in an increase of the average APD (increase up to 84.1%, 98.3%, and 103.3% for adult dry, adult wet, and children skin, respectively) and modification of its spatial distribution. These results suggest that APD is underestimated in free-space measurements and that accurate experimental dosimetry requires taking into account the presence of the human body.
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