High-Resolution Technique for Near-Field Power Density Measurement Accounting for Antenna/Body Coupling at Millimeter Waves

This letter introduces a technique for the power density (PD) pattern measurement in near field taking into account antenna/body coupling at millimeter waves (mmW). The proposed method employs specifically designed structure reproducing reflection coefficient from human skin. is optimized to convert absorbed PD an infrared (IR) pattern, remotely recorded using high-resolution IR camera reconstruction of distribution. As validation example, numerical and experimental distributions are presented four-element patch antenna array conical horn 60 GHz. A very good agreement demonstrated between simulations measurements (correlation > 98%). results suggest strong potential this fast remote applied characterization wireless devices vicinity body.