Skin-equivalent phantom for on-body antenna measurements at 60 GHz

The extension of body area networks (BAN) from microwaves to millimeter waves requires to develop appropriate experimental phantoms emulating the dielectric properties of human skin for the characterization of wearable antennas, on-body propagation channel, and absorption of the electromagnetic power by the human body. Here we introduce a broadband skin-equivalent semi-solid phantom whose composition is optimized to coincide with measured values of the human skin permittivity in the 55-65 GHz range.