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Method and system for compensating for distortion in a transmitter by utilizing a digital predistortion scheme with a feedback mixer configuration

  • US 8,948,700 B2
  • Filed: 08/20/2013
  • Issued: 02/03/2015
  • Est. Priority Date: 12/06/2006
  • Status: Active Grant
First Claim
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1. A system, comprising:

  • a radio frequency (RF) receiver;

    an RF transmitter configured to generate an output signal;

    a feedback in-phase (I) mixer configured to perform a frequency downconversion operation on the output signal to generate an I component feedback signal;

    a feedback quadrature-phase (Q) mixer configured to perform a frequency downconversion operation on the output signal to generate a Q component feedback signal; and

    switching circuitry configured to insert the I component feedback signal and the Q component feedback signal at an insertion point in the RF receiver.

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