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Transceiver with isolation-filter compensation and method therefor

  • US 20070082617A1
  • Filed: 10/11/2005
  • Published: 04/12/2007
  • Est. Priority Date: 10/11/2005
  • Status: Abandoned Application
First Claim
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1. A transceiver with isolation-filter compensation, said transceiver comprising:

  • an RF transmitter configured to generate an RF transmit signal;

    a first isolation filter having an input adapted to receive said RF transmit signal and to pass said RF transmit signal to an output of said first isolation filter;

    an RF receiver configured to process an RF receive signal;

    a second isolation filter having an input adapted to receive said RF receive signal and said RF transmit signal and having an output coupled to said RF receiver, said second isolation filter being configured to pass said RF receive signal from said input of said second isolation filter to said output of said second isolation filter and to leak a portion of said RF transmit signal at said output of said second isolation filter; and

    a feedback control circuit coupled to said RF receiver, said feedback control circuit having a control input adapted to obtain said RF transmit signal from said first isolation filter, and said feedback control circuit being configured to compensate said RF receiver for said leaked portion of said RF transmit signal at said output of said second isolation filter in response to said RF transmit signal obtained from said first isolation filter.

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