×

High dynamic range time-varying integrated receiver for elimination of off-chip filters

  • US 7,460,844 B2
  • Filed: 01/28/2005
  • Issued: 12/02/2008
  • Est. Priority Date: 01/28/2004
  • Status: Active Grant
First Claim
Patent Images

1. A receiver circuit comprising:

  • a quadrature passive mixer having an input and an output;

    one or more output impedances coupled to the output of the quadrature passive mixer wherein an input impedance of the quadrature passive mixer provides a band-pass response;

    a low noise amplifier (LNA) having an input and an output coupled to the quadrature passive mixer, the LNA configured to provide substantially linear transconductance over a predetermined input range; and

    wherein the LNA and the quadrature passive mixer are configured so that a band-pass mixer input impedance response is presented to the output of the LNA so as to substantially reduce a LNA voltage gain for unwanted signals presented to the LNA input.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×