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Compact multibeam antenna

  • US 8,704,727 B2
  • Filed: 05/11/2010
  • Issued: 04/22/2014
  • Est. Priority Date: 05/11/2009
  • Status: Active Grant
First Claim
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1. Multibeam antenna for emitting/receiving a radiofrequency signal in a plurality of directions in at least one band of frequencies, the antenna comprising:

  • a ground plane (P);

    a dielectric substrate (11), having a permittivity ∈

    1, the substrate (11) being arranged on the ground plane (P);

    a plurality of assemblies of antenna elements arranged on the substrate (11), each assembly corresponding to a direction of the antenna;

    wherein the antenna further comprises a dielectric superstrate (12), having a permittivity (∈

    2) greater than the permittivity (∈

    1) of the substrate (11), arranged on the assemblies of antenna elements, and in that the assemblies are interleaved one under the other so as to form a column of antenna elements in a periodic manner, the period being equal to the number of direction of the antenna.

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