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Systems and methods that employ a balanced duplexer

  • US 7,123,883 B2
  • Filed: 09/26/2003
  • Issued: 10/17/2006
  • Est. Priority Date: 09/26/2003
  • Status: Expired due to Fees
First Claim
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1. A balanced duplexer, comprising:

  • a first filter comprising one of a bulk acoustic wave BAW filter and a surface acoustic wave SAW filter;

    a second filter comprising the other one of a bulk acoustic wave BAW filter and a surface acoustic wave SAW filter, the first and second filters having a substantially similar input and output impedance;

    a first coupler that interfaces the first and second filters to a processing unit of a device and the first coupler interfaces a first termination; and

    a second coupler that interfaces the first and second filters to each of an antenna, a detector and a second termination, wherein the balanced duplexer is employed to facilitate transmitting and receiving signals, each signal having a respective signal power, through the first and second filters.

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