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PROCESS COMPENSATING FOR ARRAY ANTENNA RADIATING ELEMENT POSITIONING ERRORS

  • US 20080030412A1
  • Filed: 03/17/2007
  • Published: 02/07/2008
  • Est. Priority Date: 03/17/2006
  • Status: Active Grant
First Claim
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1. A process of compensating for the positioning errors of the radiating elements in an array antenna, comprising the following steps:

  • measuring the positioning error for each radiating element n and compiling an imperfection vector I, whose components are values of the positioning error function δ

    (n), modeling the error function δ

    (n) as the sum of the spectral sinusoidal components En(i) calculated by the application of a Fourier transform to the imperfections vector I, followed by the application of an inverse Fourier transform to vector dd obtained in this way, calculating correction functions Δ

    a(n), Δ

    φ

    (n), by amplitude and/or phase modulation, applicable to each of the spectral sinusoidal components En(i) of function δ

    (n), with the correction functions defined as the sums of the spectral sinusoidal components An(i) and Φ

    n(i), determining the form of function Δ

    (n) to be applied to each of the spectral sinusoidal components En(i) of function δ

    (n) depending on the aiming angle θ

    0 of the antenna.

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