Green´s function models and measurements for body area network (BAN) channels

This work investigates using the spatially varying Green´s function of an idealized body to provide a model that is independent of the antennas and scattering environment. This paper considers a lossy infinite circular cylinder model for the body, but generalized to include arbitrary source and observation polarization. Additionally, measurements are performed in a compact anechoic chamber with non-resonant short monopoles, better approximating an ideal point current source and field sensor. The results indicate that the simple model is adequate for certain polarizations, but insufficient for others. Also, this effort reveals some practical limitations of BAN measurements in compact chambers.