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Frequency selective leveling loop for multi-signal phased array transmitters

  • US 20060068707A1
  • Filed: 09/24/2004
  • Published: 03/30/2006
  • Est. Priority Date: 09/24/2004
  • Status: Active Grant
First Claim
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1. A frequency selective leveling loop device for multi-signal phased array transmitters, comprising:

  • a multi-signal exciter adapted to process a plurality of exciter signals and to sum the exciter signals, thereby forming a composite signal;

    an I and Q down converter adapted to convert a sample of the composite signal to I and Q signals, by mixing the composite signal with an amplitude limited exciter signal sample, thereby providing two mixed outputs that each include a number of AC signals and a DC component; and

    a digital low pass filter adapted to remove the AC signals from the mixed outputs leaving only the DC component, thereby enabling at least one of amplitude leveling and steering of each signal in an independent beam.

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