Patent ID: 9698631
Date: 2017-07-04
CPC Classifications: H02J

Claim:
1. A wireless power supply device comprising: a microwave generator for generating microwaves; a first power transmission antenna to which microwaves generated by the microwave generator are supplied; a second power transmission antenna to which microwaves generated by the microwave generator are supplied; a first power receiving antenna provided between a power transmission surface of the first power transmission antenna and a power transmission surface of the second power transmission antenna, having a power receiving surface facing the power transmission surface of the first power transmission antenna; and a second power receiving antenna provided between the power transmission surface of the first power transmission antenna and the power transmission surface of the second power transmission antenna, having a power receiving surface facing the power transmission surface of the second power transmission antenna, wherein the first power receiving antenna and the second power receiving antenna are integrally formed and connected to a power supply target, a direction in which the power receiving surface of the first power receiving antenna faces the power transmission surface of the first power transmission antenna is parallel to a direction in which the power receiving surface of the second power receiving antenna faces the power transmission surface of the second power transmission antenna, wherein the first power transmission antenna and the second power transmission antenna transmit microwaves of linearly polarized waves, and vibration directions of electric fields are different in microwaves transmitted from the first power transmission antenna and microwaves transmitted from the second power transmission antenna.