METHOD AND APPARATUS FOR WIRELESS POWER TRANSFER OF IMPROVING SPECTRUM EFFICIENCY AND SPACE EFFICIENCY BASED ON IMPEDANCE MATCHING AND REALY RESONANCE

摘要

A wireless power transmission method and apparatus are provided for improving spectral efficiency and space efficiency based on impedance matching and a relay resonator. The wireless power transmission method can detect the input impedance at the resonant frequency and match the transmit port impedance to the real value of the detected input impedance. In addition, the wireless power transmission method can transmit power to a reception resonator having a smaller size than the transmission resonator using a relay resonator.