WIRELESS POWER TRANSMISSION APPARATUS USING NEAR FIELD FOCUSING

摘要

PURPOSE: A wireless power transmission apparatus using near field focusing is provided to enhance energy transmission efficiency by focusing a magnetic field which is outputted in an undesirable direction on a target device. CONSTITUTION: A source unit(211) comprises a power source resonator. The source unit transmits wireless power to a target device(120). A near field focusing unit(213) focuses the near field of a magnetic field omni-directionally emitted from the power source resonator on the target device. The near field focusing unit comprises a meta-superstrate with a sound refraction property.