×

CMOS power amplifier with reduced harmonics and improved efficiency

  • US 6,359,513 B1
  • Filed: 01/31/2001
  • Issued: 03/19/2002
  • Est. Priority Date: 01/31/2001
  • Status: Expired due to Term
First Claim
Patent Images

1. A power amplifier, comprising:

  • a first CMOS amplifier stage having an input and an output;

    a second CMOS amplifier stage having an input and an output; and

    a transformer that includes;

    a primary coil having a first and second terminal, the first terminal being operably coupled to the output of the first CMOS amplifier stage, and the second terminal being operably coupled to the output of the second CMOS amplifier stage, and a secondary coil that provides an output of the power amplifier;

    wherein the inputs of the first and the second CMOS amplifier stages correspond to differential input signals of a signal input, thereby substantially attenuating even-order harmonics of the signal input.

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