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Antenna system

  • US 9,203,149 B2
  • Filed: 02/09/2011
  • Issued: 12/01/2015
  • Est. Priority Date: 02/15/2010
  • Status: Active Grant
First Claim
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1. An antenna system, comprising:

  • a phased array antenna for emitting electromagnetic waves as a first nominally parallel beam at a first effective aperture; and

    a dielectric lens arrangement spaced apart from the phased array antenna;

    wherein the dielectric lens arrangement comprises a curved inner surface positioned within the near field of the phased array antenna thereby defining the first effective aperture, the curved inner surface diverging the first nominally parallel beam to provide diverged rays diverged relative to the first nominally parallel beam and a curved outer surface for converging the diverged rays relative to the diverged rays to provide a second nominally parallel beam, thereby defining a second effective aperture larger than the first effective aperture of the phased array antenna.

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