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RADIO FREQUENCY SWITCH CIRCUIT

  • US 20160285449A1
  • Filed: 11/30/2015
  • Published: 09/29/2016
  • Est. Priority Date: 03/25/2015
  • Status: Active Grant
First Claim
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1. A radio frequency switch circuit, comprising a first switch circuit connected between a signal port and an antenna port and operated by a gate signal, wherein the first switch circuit comprises:

  • a switching circuit controlled to be in a turned on or turned off state on the basis of the gate signal to thereby allow a radio frequency signal to pass or be blocked;

    a voltage dividing circuit connected to terminals of the switching unit that the radio frequency signal passes through and configured to output intermediate voltage between the terminals by a voltage dividing node; and

    an impedance circuit connected between the voltage dividing node and a body terminal of the switching circuit.

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