Cylindrical antenna using near zero index metamaterial

  • US Patent No. 9882286
  • Issued: January 30, 2018
  • Status: Active

A cylindrical antenna includes: a hollow cylinder having a height, an inner radius b, an axis, a cylindrical surface, and two ends; a ground plane on one end of the cylinder; an antenna wire extending from a center of the cylinder at one end on a ground plane along the axis and ending below the height of the cylinder; and a layer of near zero index (NZI) metamaterial surrounding and adjacent to the cylindrical surface.

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