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Antenna system facilitating reduction of interfering signals

  • US 9,647,345 B2
  • Filed: 10/21/2013
  • Issued: 05/09/2017
  • Est. Priority Date: 10/21/2013
  • Status: Active Grant
First Claim
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1. An antenna system comprising:

  • a surface scattering antenna including;

    an electromagnetic waveguide structure; and

    a plurality of electromagnetic wave scattering elements distributed along the waveguide structure and operable in combination to produce a controllable radiation pattern;

    a gain definition circuit configured to define a radiation pattern configured to receive a possible interfering signal transmitted within an operating frequency band of an associated antenna, the associated antenna having a field of view that includes a desired field of view and an undesired field of view, and the defined antenna radiation pattern having a field of view covering at least a portion of the undesired field of view of the associated antenna, wherein the undesired field of view includes the possible interfering signal, and the desired field of view includes a target signal;

    an antenna controller configured to establish the defined radiation pattern in the surface scattering antenna by activating a respective electromagnetic response of selected electromagnetic wave scattering elements of the plurality of electromagnetic wave scattering elements; and

    a correction circuit configured to reduce an influence of the received possible interfering signal in a contemporaneously received signal by the associated antenna.

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