Wireless power transmitters for selecting antenna sets for transmitting wireless power based on a receiver's location, and methods of use thereof
An example method disclosed herein includes: transmitting, by a first set of a plurality of antennas of a transmitter, a first set of power waves to form a first constructive interference pattern at a first location of a receiver, and each antenna of the first set is a first type of antenna. The method also includes: receiving, by a communications component of the transmitter, a communication signal that identifies a second location of the receiver; and upon receiving the communication signal, selecting, based on the second location, a second set of the plurality of antennas to transmit power waves to the second location, and each antenna of the second set is a second type of antenna distinct from the first type. The method additionally includes: transmitting, by the second set of antennas, the second set of power waves to form a second constructive interference pattern at the second location.
1. A transmitting device for transmitting wireless power to different locations of receiving devices, the transmitting device comprising:
a controller;
an antenna array that includes:
first antennas of a first type that are coupled to the controller; and
second antennas, distinct from the first antennas, of a second type that are coupled to the controller,
wherein the controller is configured to:
when a first receiving device is detected at a first location, cause the first antennas to transmit a first set of power waves via the first antennas to generate a first constructive interference pattern at the first location of the first receiving device; and
when a second receiving device is detected at a second location, distinct from the first location, cause the second antennas to transmit a second set of power waves via the second antennas to generate a second constructive interference pattern at the second location of the second receiving device.
2. The transmitting device of claim 1 , wherein the first type and the second type are different antenna types selected from the group including a flat antenna type, a patch antenna type, and a dipole antenna type.
3. The transmitting device of claim 1 , wherein the first location is closer to the transmitting device than the second location, and the first type is a dipole antenna type.
4. The transmitting device of claim 3 , wherein the second type is a flat panel antenna type.
5. The transmitting device of claim 1 , wherein the first and second antennas are configured to transmit power waves using different frequency bands.
6. The transmitting device of claim 1 , wherein respective power waves of the first and second sets are transmitted at a same time.
7. The transmitting device of claim 1 , further comprising:
a communications component of the transmitting device, wherein the communications component is configured to receive communication signals indicating the first location of the receiving device and the second location of the receiving device.
8. A method of transmitting wireless power to different locations of receiving devices, comprising:
transmitting, by first antennas of a first type that are coupled to a controller of a transmitting device, a first set of power waves that form a first constructive interference pattern at a first location of a first receiving device;
upon detecting a second receiving device at a second location, distinct from the first location, selecting by the controller second antennas, distinct from the first antennas, of a second type to use for transmitting power waves to the second location of the receiving device; and
causing, by the controller, the second antennas to transmit a second set of power transmission waves that form a second constructive interference pattern at the second location of the receiving device,
wherein the first and second antennas are part of a same antenna array.
9. The method of claim 8 , wherein the first type and the second type are different antenna types selected from the group including a flat antenna type, a patch antenna type, and a dipole antenna type.
10. The method of claim 8 , wherein the first location is closer to the transmitting device than the second location, and the first type is a dipole antenna type.
11. The method of claim 10 , wherein the second type is a flat panel antenna type.
12. The method of claim 8 , wherein the first and second antennas are configured to transmit power waves using different frequency bands.
13. The method of claim 8 , wherein information identifying the second location of the receiving device is received via a communications component of the transmitting device.