×

Digital beam-forming network having a reduced complexity and array antenna comprising the same

  • US 9,876,546 B2
  • Filed: 12/20/2013
  • Issued: 01/23/2018
  • Est. Priority Date: 12/20/2013
  • Status: Active Grant
First Claim
Patent Images

1. A digital beam-forming network (DBF) for an array antenna having N>

  • 1 antenna ports, to be associated with respective antenna elements, and M≧

    1 beam ports, corresponding to respective antenna beams, the digital beam-forming network comprising;

    a plurality of complex weighting elements interconnected through summing nodes;

    wherein at least one of the complex weighting elements is connected to either two antenna ports, to be associated with respective antenna elements which are arranged symmetrically with respect to a symmetry axis to provide first symmetries, or two beam ports corresponding to respective antenna beams pointing toward directions which are symmetrical with respect to a symmetry axis to provide second symmetries, or both;

    the digital beam-forming network being configured to exploit said first or second symmetries, or configured to exploit first and second symmetries.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×