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Dual polarization planar array antenna and cell elements therefor

  • US 7,663,566 B2
  • Filed: 05/25/2006
  • Issued: 02/16/2010
  • Est. Priority Date: 10/16/2005
  • Status: Active Grant
First Claim
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1. An RF antenna structure, comprising:

  • at least one radiation cell having a conductive central enclosure and an upper probe and a lower probe located at different heights within the central enclosure,wherein the central enclosure between the upper probe and a bottom of the cell has at least two different cross-sectional areas,further comprising a conductive upper enclosure above the upper probe, andwherein the upper enclosure comprises a metal ridge partially overlapping the upper probe, but being smaller in area than the upper probe, serving as a single ridge waveguide structure.

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