Unit cell of a wireless power transmitter for wireless power charging

  • US 10,516,289 B2
  • Filed: 07/31/2018
  • Issued: 12/24/2019
  • Est. Priority Date: 12/24/2015
  • Status: Active Grant
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First Claim
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1. A wireless power transmitter for wirelessly delivering power to a receiver device, the wireless power transmitter comprising:

  • a plurality of unit cells configured to radiate one or more radio frequency (RF) power transmission waves, each unit cell in the plurality of unit cells including;

    a metal portion having an open aperture defined by the metal portion; and

    an antenna that is aligned with the aperture in a first dimension, the antenna being configured to radiate one or more RF power transmission waves for wirelessly charging a receiver device,wherein;

    the one or more RF power transmission waves leak from the wireless power transmitter at least in part through the aperture when the receiver device is positioned within a threshold distance from the unit cell, andviewed in a direction perpendicular to and toward the metal portion that defines the aperture, a perimeter of the antenna is surrounded by a perimeter of the aperture defined by the metal portion.

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