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TUNABLE RADIO FREQUENCY (RF) EQUALIZER

  • US 20160352541A1
  • Filed: 05/17/2016
  • Published: 12/01/2016
  • Est. Priority Date: 05/29/2015
  • Status: Active Grant
First Claim
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1. A radio frequency (RF) equalizer, comprising:

  • a coupler comprising an input port, an output port, a coupling port, and an isolation port;

    a combination circuit, comprising;

    a coupling node electrically coupled to the coupling port;

    a first digitally tunable capacitor (DTC) connected between the coupling node and ground;

    a resistor connected between the coupling node and ground for controlling a quality factor (Q) of resonance;

    an isolation node coupled to the isolation port; and

    a second DTC connected between the isolation node and ground.

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