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Controlling amplifier input impedance

  • US 8,314,659 B2
  • Filed: 04/10/2008
  • Issued: 11/20/2012
  • Est. Priority Date: 04/13/2007
  • Status: Active Grant
First Claim
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1. An amplifier containing an arrangement of capacitors to provide a function of a source degeneration inductor arrangement in determining a real part of the amplifier'"'"'s input impedance, and a transistor, having first, second and third terminals, and the arrangement of capacitors comprising first and second capacitors, wherein the first capacitor is located between the first terminal and another one of the terminals and the second capacitor is located between the second and third terminals, and at least one of the capacitors is a non-parasitic capacitor.

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