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Antennas, devices and systems based on metamaterial structures

  • US 7,764,232 B2
  • Filed: 04/27/2007
  • Issued: 07/27/2010
  • Est. Priority Date: 04/27/2006
  • Status: Expired due to Fees
First Claim
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1. A device, comprising:

  • a dielectric substrate having a first surface on a first side and a second surface on a second side opposing the first side;

    a plurality of conductive patches formed on the first surface and separated from one another;

    a ground conductive layer formed on the second surface; and

    a plurality of conductive via connectors formed in the substrate to connect the conductive patches to the ground conductive layer, respectively, to form a plurality of unit cells each comprising a volume having a respective conductive patch on the first surface, and a respective via connector connecting the respective conductive path to the ground conductive layer;

    wherein the device is structured to form a composite left and right handed (CRLH) metamaterial structure from the unit cells;

    wherein the ground conductive layer is patterned to have a dimension underneath a respective conductive patch to be less than a dimension of the respective conductive patch; and

    wherein the ground conductive layer comprises a strip line that is connected to the conductive via connectors of at least a portion of the unit cells and passes through underneath the conductive patches of the portion of the unit cells, and wherein the strip line has a width less than a dimension of the conductive patch of each unit cell.

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