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Method and apparatus for phased array antenna field recalibration

  • US 8,154,452 B2
  • Filed: 07/08/2009
  • Issued: 04/10/2012
  • Est. Priority Date: 07/08/2009
  • Status: Active Grant
First Claim
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1. A method of calibrating a modular phased array antenna, the modular phased array antenna comprising a replaced sub-array, and a plurality of sub-arrays, each sub-array comprising a plurality of antenna elements, the method comprising:

  • determining two or more complex correction coefficients for correcting respective phases and amplitudes of two or more antenna elements in the replaced sub-array;

    generating an average correction coefficient of the two or more complex correction coefficients; and

    applying the average correction coefficient to a portion of the plurality of the antenna elements in the replaced sub-array to bring the replaced sub-array into calibration with the plurality of sub-arrays.

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