An 8×8 MIMO 3-axis weighted polarization active antenna for wearable radio applications

This paper presents a 3-axis weighted-polarization active antenna in order to realize ultra high-speed and high-capacity mobile communications. The proposed antenna is comprised of three orthogonal antennas, two of which can be selected according to a weight function in different situations. The weight function is created based on the variation of cross polarization power ratio (XPR) and the inclination angle of an antenna depending on the propagation environment and the human motion. The result shows that a high level of the channel capacity can be obtained even when the variation of XPR and the antenna inclination angle are taken into consideration simultaneously, demonstrating that gigabit high-speed communication can be realized using the proposed antenna.