WIRELESS POWER CHARGING APPARATUS FOR CHARGING IoT DEVICE

摘要

The present invention relates to a wireless power transmission apparatus for charging an IoT device, and the wireless power transmission apparatus for charging an IoT device according to an embodiment of the present invention includes a transmission array antenna configured of a plurality of antennas to transmit power to a receiver; a phase adjusting unit for variably adjusting a phase of a power signal applied to each antenna of the transmitting array antenna according to the position of the receiver; a receiver detection unit for estimating a position of the receiver by receiving a power transmission request from the receiver; and a controller for controlling the phase adjusting unit by determining the phase of the power signal applied to each antenna to form an antenna beam of the same phase at the position of the receiver through focusing beamforming in the Fresnel region according to the position of the receiver includes ;