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Nulling direct radiating array

  • US 6,275,188 B1
  • Filed: 02/17/2000
  • Issued: 08/14/2001
  • Est. Priority Date: 02/17/2000
  • Status: Expired due to Fees
First Claim
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1. A nulling antenna system comprising:

  • a main phased array including a plurality of antenna elements, said main phased array combining signals received by the antenna elements into a plurality of pixel beams, said plurality of pixel beams defining at least one communications channel;

    a plurality of auxiliary phased arrays positioned around and spaced from the main array, each of the auxiliary phased arrays including a plurality of antenna elements, each of the auxiliary arrays combining signals received by the auxiliary antenna elements into an auxiliary beam; and

    at least one adaptive weighting system responsive to a plurality of pixel beams defining the at least one communications channel and the plurality of auxiliary beams from the auxiliary arrays, said adaptive weighting system determining if a jamming signal is being received by the main array and weighting the pixel beams so that the jamming signal is nulled from the at least one channel.

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