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Switched beam antenna architecture

  • US 20020163478A1
  • Filed: 08/16/2001
  • Published: 11/07/2002
  • Est. Priority Date: 08/16/2000
  • Status: Active Grant
First Claim
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1. An array antenna comprising:

  • a first plurality of antenna elements disposed to provide a transmit antenna;

    a butler matrix beam forming circuit having a plurality of antenna ports and a plurality of switch ports with each of the antenna ports coupled to ones of said first plurality of antenna elements; and

    a first switched beam combining circuit having an input port and a plurality of output ports, each of the output ports coupled to a corresponding one of the plurality of input ports of said butler matrix beamforming circuit.

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