US Patent 11502551 Wirelessly charging multiple wireless-power receivers using different subsets of an antenna array to focus energy at different locations

A method of charging multiple receivers, the method includes: (i) receiving, via the communication radio, first data that allows the transmitter to determine a locations for a first receiver and a second receiver, (ii) determining waveform features used to transmit wireless power waves focused at the location of the first receiver, (iii) determining waveform features used to transmit wireless power waves focused at the location of the second receiver, (iv) causing a first subset of antennas to transmit wireless-power waves having the first waveform features to create focused energy at the location of the first receiver and (v) causing a second subset of antennas to transmit wireless-power waves having the second waveform features to create focused energy at the second location of the second receiver, where transmitting the wireless-power waves having the first waveform features occurs while transmitting the wireless-power waves having the second waveform features.