Microstrip antennas for wireless power transmitters

  • US 10,439,442 B2
  • Filed: 01/24/2017
  • Issued: 10/08/2019
  • Est. Priority Date: 01/24/2017
  • Status: Active Grant
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First Claim
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1. An antenna for use in a wireless power transmission system, the antenna comprising:

  • a first multi-layer printed circuit board (PCB) that includes a top surface and a bottom surface that is opposite the top surface, wherein the top and bottom surfaces of the first multi-layer PCB include a first electrically conductive material;

    a second multi-layer PCB that includes a top surface and a bottom surface that is opposite the top surface, wherein the top and bottom surfaces of the second multi-layer PCT include a second electrically conductive material, wherein the second multi-layer PCB is separate and distinct from the first multi-layer PCB;

    a first plurality of vias that each substantially pass through the top and bottom surfaces of the first multi-layer PCB;

    a second plurality of vias that each substantially pass through the top and bottom surfaces of the second multi-layer PCB, wherein the second plurality of vias is separate and distinct from the first plurality of vias;

    a dielectric slab that is configured to receive;

    the first multi-layer PCB, andthe second multi-layer PCB; and

    a first feed that at least partially passes through each of the first multi-layer PCB, the second multi-layer PCB, and the dielectric slab, wherein the first feed delivers a radio frequency (RF) signal at a predetermined frequency to the antenna,wherein the antenna is configured to transmit the RF signal for delivering wireless power to at least one remote receiver device, and the at least one remote receiver device is configured to convert the RF signal into usable power for providing power or charge to the at least one remote receiver device.

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