Patent attributes
The disclosure describes a methodology for wireless power transmission This methodology may be performed at a wireless power transmitter that includes at least two wireless-power-transmitting antennas and at least one data-receiving antenna, and the methodology includes defining a wireless charging area at a range of distance away from the transmitter; obtaining, via the at least one data-receiving antenna, data included in a signal received from a wireless power receiver; and determining a location of the wireless power receiver based upon the data included in the signal received from the wireless power receiver. In response to determining that the location of the receiver is within the wireless charging area, the method includes transmitting, via the at least two wireless-power-transmitting antennas, radio frequency power waves that: constructively interfere within the wireless charging area at the location of the receiver; and destructively interfere to form a null-space outside of the wireless charging area.