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Systems and methods of RF power transmission, modulation, and amplification, including embodiments for compensating for waveform distortion

  • US 8,059,749 B2
  • Filed: 02/28/2007
  • Issued: 11/15/2011
  • Est. Priority Date: 04/24/2006
  • Status: Active Grant
First Claim
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1. A method for phase and amplitude error correction in a power amplifier, comprising:

  • measuring phase and amplitude error differential signals from first and second constant envelope signals generated in first and second branches of said power amplifier, wherein said phase and amplitude error differential signals include respectively differences in phase and amplitude between said first and second constant envelope signals; and

    adjusting phase and amplitude of said first and second constant envelope signals of the power amplifier according to said error differential signals.

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