The promising future of the applications on healthcare, personal entertainment, sports and military, makes the study on antennas and propagation for body-centric wireless communications a field of research extremely important. The research focused on ISM band at 2.4 GHz, UWB and millimetre waves has been widely investigated [2]. Two patch antennas working at 2.45GHz is used to measure the on-body propagation path loss in an anechoic chamber and in the lab respectively [3] while a sub-band FDTD and a combined UTD/RT model is used to investigate the on-body radio channel at frequencies from 3 GHz to 9 GHz in [4]. In [5], the parallel numerical modeling method using FDTD is applied to study the radio propagation and system performance of the wireless body area network at UWB band and it proves that the propagation is subject-specific while a male body numerical model is simulated to investigate the body-centric environment at W band [6].