Multipolarization Antenna Design And Analysis Of On-Body Communication

On-body communications show highly polarization selectivity in both radio channels and antennas due to the complex body coupling and scattering effects, and full-space dimension link distribution. To mitigate the polarization variation of on-body communication links, multipolarization antennas are proposed to adaptively capture the on-body channel polarization components. In this article, a tri-polarization antenna design is introduced with its performance evaluated on a simplified three-layered human chest model including skin, fat, and muscle tissues. The return loss, frequency response, and the radiation pattern of designed antenna are found to be affected by the relative orientation and distance between the antennas and the trunk, indicating the necessity of the antenna emplacement optimization for realistic on-body communication devices.