Modulation agnostic digital hybrid mode power amplifier system and method

  • US 8,804,870 B2
  • Filed: 12/21/2010
  • Issued: 08/12/2014
  • Est. Priority Date: 12/21/2009
  • Status: Active Grant
First Claim
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1. A digital predistortion system for linearizing the output of power amplifiers comprising:

  • input signal suitable for wireless communications,at least one power amplifier for outputting an amplified signal,at least one feedback signal derived from the amplified signal including a representation of a noise characteristic of the at least one power amplifier, estimator logic responsive to the at least one feedback signal for generating predistortion coefficients based at least in part on feedback path delay determined from the correlation given by the equation

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