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Radio Frequency (RF) Envelope Pulsing Using Phase Switching of Switch-Mode Power Amplifiers

  • US 20100001796A1
  • Filed: 07/01/2008
  • Published: 01/07/2010
  • Est. Priority Date: 07/01/2008
  • Status: Active Grant
First Claim
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1. A radio frequency (RF) power generator, comprising:

  • a first switch-mode amplifier that generates a first RF signal in accordance with a first control signal; and

    a second switch-mode amplifier that generates a second RF signal in accordance with a second control signal, wherein the first and second control signals determine a phase difference between the first and second RF signals and wherein an output signal envelope is based on the first and second RF signals and the phase difference, wherein the first control and second control signals alternate phases of the first and second RF signals.

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