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Variable phase-shifting rf power amplifiers

  • US 6,690,238 B2
  • Filed: 03/04/2002
  • Issued: 02/10/2004
  • Est. Priority Date: 12/27/2000
  • Status: Active Grant
First Claim
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1. A method for phase-shifting an rf output which comprises:

  • a) phase-splitting an rf input into a plurality of rf signals that are at different phase angles;

    b) amplifying a selected one of said rf signals;

    c) simultaneously amplifying an other of said rf signals;

    d) inversely controlling gains of said amplifying steps; and

    e) combining said rf signals into said rf output subsequent to said amplifying steps.

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