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Gain boosting for tuned differential LC circuits

  • US 20060145762A1
  • Filed: 01/05/2005
  • Published: 07/06/2006
  • Est. Priority Date: 01/05/2005
  • Status: Active Grant
First Claim
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1. A gain boost amplifier circuit, comprising:

  • at least one input port for receiving communication signals;

    at least one output port for providing amplified communication signals;

    amplification circuitry coupled between the input port and the output port, the amplification circuitry for amplifying the received communication signals by a gain value;

    at least one output resonant tank circuit coupled to the output port that is tuned to provide a first impedance level at a desired operating frequency of the amplification circuitry; and

    an adjustable negative transconductance stage coupled between the output resonant tank circuit and the amplification circuitry for effectively generating an adjustable negative transconductance value to reduce any resistive losses generated by the output resonant tank circuit, thereby increasing the gain value of the amplification circuitry.

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