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Low noise amplifier for wireless communications

  • US 7,266,360 B2
  • Filed: 04/07/2004
  • Issued: 09/04/2007
  • Est. Priority Date: 04/07/2004
  • Status: Expired due to Fees
First Claim
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1. A low noise amplifier for a wireless communication system, comprising:

  • an arrangement of active elements forming an amplifier having a signal input and a bias input and a signal output;

    an interconnection node between two of said active elements;

    an inductive element connected at one end to said interconnection node;

    a capacitance element connecting another end of said inductive element to ground, said inductive element and said capacitance element being selected to provide a notch filter for substantially reducing an amplitude of a predetermined frequency from a signal at said signal output; and

    a further active element connected to an interconnection node between said inductive element and said capacitance element, said further active element connected between said active elements and a supply voltage and having a connection to a control signal at an control input.

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