×

Circuit and method of reducing noise in an RF power amplifier

  • US 7,212,070 B2
  • Filed: 12/22/2003
  • Issued: 05/01/2007
  • Est. Priority Date: 12/22/2003
  • Status: Active Grant
First Claim
Patent Images

1. A method of reducing noise in a multi-stage power amplifier, comprising:

  • providing a first power amplifier stage having an inductance coupled to a first switching device;

    coupling a second power amplifier stage to the first power amplifier stage, wherein the second power amplifier stage has an inductance coupled to a second switching device; and

    providing a feedback path from the second power amplifier stage to the first power amplifier stage to force the DC levels of the first and second power amplifier stages to be approximately equal, wherein the feedback path is provided by coupling an inductor to each of the inductances of the first and second power amplifier stages.

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