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Ultra-wideband high power amplifier architecture

  • US 8,989,683 B2
  • Filed: 03/15/2013
  • Issued: 03/24/2015
  • Est. Priority Date: 03/27/2012
  • Status: Active Grant
First Claim
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1. An amplifier circuit comprising:

  • a power divider configured to receive a radio frequency (RF) input signal;

    a first chipset operatively coupled with the power divider and configured to amplify a first sub-band of the input signal;

    a second chipset operatively coupled with the power divider and configured to amplify a second sub-band of the input signal; and

    a control circuit to control chipset output, the control circuit comprising a temperature sensing circuit configured to detect an ambient temperature change, generate a sense voltage therefrom, and shift a bias voltage supplied to at least one of the first chipset and/or the second chipset based on combination of the sense voltage and the bias voltage;

    wherein the input signal is of a given bandwidth, and sub-bands amplified by the amplifier circuit including the first sub-band and the second sub-band, in the aggregate, cover the bandwidth of the input signal.

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