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Array antenna system

  • US 6,768,453 B2
  • Filed: 01/16/2002
  • Issued: 07/27/2004
  • Est. Priority Date: 01/16/2001
  • Status: Expired due to Term
First Claim
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1. An array antenna system having an electrically large array antenna, comprising:

  • a first antenna subarray;

    a second antenna subarray;

    a combination line network having an input for receiving an antenna power signal, and a first output connected to emit a first output signal to the first antenna subarray, and a second output connected to emit a second output signal to the second antenna subarray;

    a phase shifting device for generating a phase displacement between the first and second output signals before they are fed to the antenna subarrays;

    apparatus for compensating the chase displacement in the beam path of the antenna radiation emitted by the first and second antenna subarrays; and

    wherein the antenna subarrays are mutually displaced with respect to a main beaming direction of the antenna.

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