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RF triplexer architecture

  • US 9,893,709 B2
  • Filed: 03/30/2015
  • Issued: 02/13/2018
  • Est. Priority Date: 03/14/2014
  • Status: Active Grant
First Claim
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1. A Radio Frequency (RF) triplexer comprising:

  • a first hybrid RF coupler which provides a first main port, a first pair of quadrature ports, and an isolation port;

    a second hybrid RF coupler which provides a second main port and a second pair of quadrature ports;

    a third hybrid RF coupler which provides a third main port and a third pair of quadrature ports; and

    RF filter circuitry coupled to the first pair of quadrature ports, the second pair of quadrature ports, and the third pair of quadrature ports;

    wherein the first main port, the second main port, and the third main port provide main ports of the RF triplexer; and

    the isolation port is a common port of the RF triplexer for coupling to an RF antenna, wherein the RF triplexer is configured to;

    substantially pass at least a first RF signal between the common port and the first main port, such that a carrier frequency of the at least a first RF signal is between about 2400 megahertz and about 2490 megahertz;

    substantially pass at least a second RF signal between the common port and the second main port, such that a carrier frequency of the at least a second RF signal is between about 1700 megahertz and about 2300 megahertz; and

    substantially pass at least a third RF signal between the common port and the third main port, such that a carrier frequency of the at least a third RF signal is between about 2500 megahertz and about 2700 megahertz.

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