Polarization Adaptive Wireless Power Transmission System

Abstract

The technology described herein relates to polarization adaptive wireless power transmission systems. In an implementation, a wireless power transmission system is described. The wireless power transmission system includes an antenna array and control circuitry operatively coupled to the antenna array. The control circuitry is configured to determine polarization information of a beacon signal received from a client device at multiple antennas of the antenna array. The beacon signal is transmitted by a client device in a wireless power delivery environment. The control circuitry is further configured to configure polarization information associated with each of the multiple antennas to match the polarization information determined at respective antennas of the multiple antennas. The present technology enables different wireless power receiver clients to have different polarizations. The wireless power transmission system can efficiently send power to the client devices by matching their polarization.

What is claimed is: 
     
         1 . A method in a transceiver, the method comprising:
 determining, by a controller of the transceiver, polarization information for one or more antennas to match polarization data of a signal received from a transmitter by at least one antenna; and   configuring, by the controller and based on the polarization information, the one or more antennas to facilitate generation of a waveform for transmission by the one or more antennas to a location of the transmitter.   
     
     
         2 . The method of  claim 1  further comprising receiving, by the at least one antenna operably coupled to the controller, the signal from the transmitter. 
     
     
         3 . The method of  claim 1  further comprising directing the one or more antennas to transmit a responsive signal having the waveform to the location of the transmitter. 
     
     
         4 . The method of  claim 1  further comprising determining, by the controller and based on the signal, the polarization data. 
     
     
         5 . The method of  claim 1  further comprising receiving, by the one or more antennas operably coupled to the controller, the signal over a line of sight path. 
     
     
         6 . The method of  claim 5  further comprising: determining, by the controller and based on the signal, the polarization data representative of one of: a right hand circular polarized (RHCP), and a left hand circular polarized (LHCP), signal being received by the one or more antennas from the transmitter over the line of sight path. 
     
     
         7 . The method of  claim 6 , wherein configuring the one or more antennas comprises configuring the one or more antennas to facilitate generation of the waveform for transmission by the one or more antennas to the location of the transmitter as one of:
 a RHCP waveform for determining the polarization data to be representative of the RHCP signal; and   an LHCP waveform for determining the polarization data to be representative of the LHCP signal.   
     
     
         8 . The method of  claim 7  further comprising one of:
 generating, by the controller, the RHCP waveform after determining the polarization data to be representative of the RHCP signal; and 
 generating, by the controller, the LHCP waveform after determining the polarization data to be representative of the LHCP signal. 
 
     
     
         9 . The method of  claim 8  further comprising one of:
 directing, by the controller, the one or more antennas to transmit the RHCP waveform over the line of sight path to the location of the transmitter after generating the RHCP waveform; and 
 directing, by the controller, the one or more antennas to transmit the LHCP waveform over the line of sight path to the location of the transmitter after generating the LHCP waveform. 
 
     
     
         10 . A transceiver comprising a controller configured to:
 determine polarization information for one or more antennas to match polarization data of a signal received from a transmitter by at least one antenna; and   configure, based on the polarization information, the one or more antennas to facilitate generation of a waveform for transmission by the one or more antennas to a location of the transmitter.   
     
     
         11 . The transceiver of  claim 10 , wherein the controller is further configured to generate the waveform according to the polarization information. 
     
     
         12 . The transceiver of  claim 10  further comprising the at least one antenna operably coupled to the controller and configured to receive the signal over a multipath causing the signal to be reflected off of a reflective surface after being transmitted by the transmitter and before being received by the one or more antennas. 
     
     
         13 . The transceiver of  claim 12 , wherein the controller is further configured to determine, based on the signal, the polarization data representative of one of: a right hand circular polarized (RHCP), and a left hand circular polarized (LHCP), reflected signal being received by the one or more antennas from the transmitter over the multipath path. 
     
     
         14 . The transceiver of  claim 13 , wherein to configure the one or more antennas, the controller is configured to configure the one or more antennas to facilitate generation of the waveform for transmission by the one or more antennas to the location of the transmitter as one of:
 an LHCP waveform for determining the polarization data to be representative of the RHCP reflected signal; and   a RHCP waveform for determining the polarization data to be representative of the LHCP reflected signal.   
     
     
         15 . The transceiver of  claim 14 , wherein the controller is further configured to:
 generate the LHCP waveform after the polarization data being determined to be representative of the RHCP reflected signal; or   generate the RHCP waveform after the polarization data being determined to be representative of the LHCP reflected signal.   
     
     
         16 . The transceiver of  claim 15 , wherein the controller is further configured to:
 direct the one or more antennas to transmit the LHCP waveform over the multipath to the location of the transmitter after the LHCP waveform is generated; or   direct the one or more antennas to transmit the RHCP waveform over the multipath to the location of the transmitter after the RHCP waveform is generated.   
     
     
         17 . The transceiver of  claim 16 , wherein the controller is further configured to:
 direct the one or more antennas to transmit the LHCP waveform to cause the LHCP waveform to be reflected over the multipath to thereby be received by the transmitter as an RHCP waveform; and   direct the one or more antennas to transmit the RHCP waveform comprises to cause the RHCP waveform to be reflected over the multipath to thereby be received by the transmitter as an LHCP waveform.   
     
     
         18 . The transceiver of  claim 10 , wherein to determine the polarization information, the controller is configured to separately analyze horizontal and vertical polarization components of the signal received from the transmitter by the at least one antenna. 
     
     
         19 . The transceiver of  claim 18 , wherein to configure the one or more antennas, the controller is configured to configure the one or more antennas to facilitate generation of the waveform having the horizontal and vertical polarization components matching the signal received from the transmitter by the at least one antenna. 
     
     
         20 . One or more non-transitory computer readable media having stored thereon program instructions which, when executed by one or more processors, cause a machine to:
 determine polarization information for one or more antennas to match polarization data of a signal received from a transmitter by at least one antenna; and   configure, based on the polarization information, the one or more antennas to facilitate generation of a waveform for transmission by the one or more antennas to a location of the transmitter.