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Electromagnetic band gap structure for enhanced scanning performance in phased array apertures

  • US 9,030,360 B2
  • Filed: 07/26/2012
  • Issued: 05/12/2015
  • Est. Priority Date: 07/26/2012
  • Status: Active Grant
First Claim
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1. A phased array of antenna elements disposed on a substrate, comprising a plurality of unit cells, each said unit cell comprising:

  • an antenna element disposed on said substrate and substantially surrounded by a periodic arrangement of metamaterial elements;

    a lossy material disposed on said substrate and forms a contiguous border around each said metamaterial element;

    wherein said lossy material reduces undesired coupling between said antenna element and said periodic arrangement of metamaterial elements.

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