Patent ID: 11967760
Assignee: ENERGOUS CORPORATION
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of wirelessly delivering power to an electronic device, the method comprising:
at a wireless-power-transmitting device that includes an antenna array, the antenna array including a first antenna group of at least two antennas and a second antenna group of at least two antennas distinct from the first antenna group, wherein the wireless-power-transmitting device is in communication with a controller:
based on a location of a wireless-power-receiving device, selecting by the controller:
(i) a first value for a first transmission characteristic that is used for transmission of electromagnetic waves by the at least two antennas in the first antenna group, and
(ii) a second value, distinct from the first value, for the first transmission characteristic that is used for transmission of electromagnetic waves by the at least two antennas in the second antenna group;

transmitting to the location of the wireless-power-receiving device, by the at least two antennas in the first antenna group, first electromagnetic waves with the first value for the first transmission characteristic; and
transmitting to a focal point that is further from the wireless-power-transmitting device than the location of the wireless-power-receiving device, by the at least two antennas in the second antenna group, second electromagnetic waves with the second value for the first transmission characteristic,

wherein the wireless-power-receiving device uses energy from at least the first electromagnetic waves to power or charge the wireless-power-receiving device.