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TRANSMIT AND RECEIVE RF MULTIPLEXER

  • US 20150118978A1
  • Filed: 10/27/2014
  • Published: 04/30/2015
  • Est. Priority Date: 10/25/2013
  • Status: Active Grant
First Claim
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1. A transmit and receive RF multiplexer comprising:

  • a first hybrid RF transmit coupler having a first main transmit port and a pair of transmit ports having a first in-phase transmit port and a first quadrature-phase transmit port;

    a first hybrid RF receive coupler having a first main receive port and a pair of receive ports having a first in-phase receive port and a first quadrature-phase receive port;

    a hybrid RF antenna coupler having a main coupler port and a pair of coupler ports having an in-phase coupler port and a quadrature-phase coupler port, such that the main coupler port is coupled to a primary RF antenna; and

    RF bandpass filter and inversion circuitry configured to;

    provide bandpass filtering between the pair of coupler ports and the pair of transmit ports;

    provide bandpass filtering between the pair of coupler ports and the pair of receive ports; and

    provide a signal inversion associated with only one of the in-phase coupler port and the quadrature-phase coupler port.

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