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Method and system for orienting a phased array antenna

  • US 10,051,487 B2
  • Filed: 03/27/2017
  • Issued: 08/14/2018
  • Est. Priority Date: 12/31/2016
  • Status: Active Grant
First Claim
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1. A method for orienting a communications antenna, the method comprising:

  • segmenting a receive phase array antenna into N sub-arrays with M-antenna elements in each sub-array;

    receiving, a known signal, by each of the M-antenna elements of at least four (4) of the N-sub-arrays;

    scanning in a direction of the known signal by applying a beam weight associated with each of the M-antenna elements in each of the at least 4-sub-arrays to obtain M-weighted signals for each of the at least 4-sub-arrays;

    combining the M-weighted signals for each of the at least 4-sub-arrays into signals A, B, C, and D, respectively;

    generating an azimuth difference signal per a weighted sum of (A+B) and (C+D) and an elevation difference signal per a weighted sum of (A+C) and (B+D);

    computing weights of the azimuth difference signal, such that the azimuth difference signal is driven to a zero signal; and

    computing weights of the elevation difference signal, such that the elevation difference signal is driven to a zero signal,wherein N is greater than or equal to four (4) and M is greater than or equal to one (1).

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