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Waveguide structure and printed-circuit board

  • US 9,634,369 B2
  • Filed: 06/24/2014
  • Issued: 04/25/2017
  • Est. Priority Date: 06/24/2008
  • Status: Active Grant
First Claim
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1. A waveguide structure, comprising:

  • a first conductive plane continuously laid out in a predetermined area;

    a second conductive plane laid in parallel with the first conductive plane; and

    a plurality of unit structures, each of which includes;

    a transmission line having a first end serving as an open end and a second end, the transmission line being formed in a different layer than the first conductive plane and the second conductive plane, and an entirety of the transmission line being disposed opposite to the second conductive plane such that the transmission line is positioned relatively close to the second conductive plane; and

    a conductive via electrically connecting the transmission line to the first conductive plane, the conductive via connected to the second end of the transmission line,wherein the unit structures are repetitively aligned in a one-dimensional manner or in a two-dimensional manner over the predetermined area, andwherein the transmission line is formed inside a region interposed between the first conductive plane and the second conductive plane.

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