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Monotonic and voltage supply independent automatic gain control amplifier

  • US 20080094138A1
  • Filed: 10/18/2006
  • Published: 04/24/2008
  • Est. Priority Date: 10/18/2006
  • Status: Active Grant
First Claim
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1. A method for providing monotonic amplification of an RF signal comprising:

  • providing an RF input signal;

    amplifying with an amplifier the RF input signal to provide an RF output signal;

    measuring an amplitude of the RF output signal to provide an amplitude measurement; and

    ,adjusting a control signal provided to the amplifier in response to one of said amplitude measurement and a supply voltage applied to the amplifier, the control signal regulated such that over a range of amplification, the first derivative of the gain of the amplifier as a function of the control signal is positive and constrained between a value at a first endpoint of the range and a value at a second other endpoint of the range.

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