×

Hybrid Adaptive Antenna Array

  • US 20120033761A1
  • Filed: 01/29/2010
  • Published: 02/09/2012
  • Est. Priority Date: 02/02/2009
  • Status: Active Grant
First Claim
Patent Images

1. A hybrid antenna array comprising:

  • (a) a plurality of digital branches, each digital branch including;

    (i) an analogue beamforming sub-array, each sub-array having a plurality of antenna elements, a phase shifter adapted to apply a phase shift to the signal from each antenna element, and a combiner adapted to combine the phase shifted signals;

    (ii) a signal chain adapted to convert the output of the sub-array to baseband; and

    (b) a digital processing module, including;

    (i) an angle of arrival estimation sub-module adapted to estimate an angle of arrival of a signal at the antenna elements;

    (ii) a phase control sub-module adapted to control the phase shift applied by each phase shifter depending on the estimated angle of arrival; and

    (iii) a digital beamformer adapted to combine the baseband signals from the digital branches using a weight vector to form an output signal.

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