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ARCHITECTURE FOR COEXISTENCE OF MULTIPLE BAND RADIOS

  • US 20120009886A1
  • Filed: 04/13/2011
  • Published: 01/12/2012
  • Est. Priority Date: 07/08/2010
  • Status: Active Grant
First Claim
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1. A front end module for use with a first and a second radio frequency transceiver operative at different carrier frequencies, the front end module comprising:

  • a control circuitry in communication with each of the first transceiver and the second transceiver;

    a first antenna connection port;

    a second antenna connection port;

    a first filter arranged to pass the frequency components in the carrier frequency bandwidth of the first radio frequency transceiver and substantially attenuate frequency components in the carrier frequency bandwidth of the second radio frequency transceiver; and

    a plurality of electronically controlled switches, each responsive to said control circuitry,wherein said control circuitry is arranged to;

    in the event that the first and second radio frequency transceivers are simultaneously operative, set said plurality of electronically controlled switches to connect the first radio frequency transceiver to one of said first antenna connection port and said second antenna connection port via said first filter; and

    in the event that said first and second radio frequency transceivers are not simultaneously operative, set said plurality of electronically controlled switches to bypass said first filter and connect the first radio frequency transceiver to one of said first antenna connection port and said second antenna connection port.

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