Near-field wireless power transfer for moving vehicle using collinear array antenna

Abstract

Near-field wireless power transfer scheme using collinear array antenna for moving vehicle is proposed. Although a collinear array antenna is known as a high-gain antenna for far-field communication system, this antenna can generate near-field distribution along the cable. In the proposed scheme, a collinear array antenna is set under the road to feed running vehicle. As a receiving antenna, half-wavelength dipole antenna is set under the vehicle. The transmitting collinear-array antenna and receiving dipole antenna couples in near-field to feed power to a vehicle. Experimental demonstration shows that this scheme is applicable for power feeding to running vehicle.