×

Predistortion linearizer for power amplifier

  • US 6,337,599 B2
  • Filed: 01/02/2001
  • Issued: 01/08/2002
  • Est. Priority Date: 12/30/1999
  • Status: Expired due to Term
First Claim
Patent Images

1. A predistortion linearizer for a power amplifier, comprising:

  • first and second envelope detector circuits configured to detect an envelope of first and second signals, respectively;

    a digital signal processor (DSP) coupled to compare output signals of the first and second envelope detector circuits to adjust a tally of a work function;

    a work function generator coupled to receive the output signal of the first envelope detector circuit and the work function tally received from the DSP to generate a work function and output at least one control voltage; and

    a vector modulator configured to distort the first signal in accordance with the at least one control voltage received from the work function generator and output a distortion compensation signal to a power amplifier.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×