MULTI FEEDING COIL ANTENNA CAPABLE OF FREQUENCY TUNING AND APPARATUS FOR WIRELESS POWER TRANSMISSION USING THE SAME

摘要

PURPOSE: A multi power feed coil antenna capable of frequency tuning and a wireless power transmission device are provided to implement real-time tuning by using a magnetic resonance method. CONSTITUTION: A resonance coil unit (111) transmits a wireless power signal to the outside. When the wireless power signal is transmitted to the outside, a magnetic resonance method is used. One or more power feed coil units (121a,121b) are arranged around the resonance coil unit. The power feed coil units induce the wireless power signal. The power feed coil units vary the resonance frequency of the wireless power signal.