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Radio frequency switch circuit having resistors connected to back gates of transistors

  • US 6,094,088 A
  • Filed: 02/26/1998
  • Issued: 07/25/2000
  • Est. Priority Date: 02/26/1997
  • Status: Expired due to Term
First Claim
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1. A switch circuit comprising:

  • first, second and third terminals;

    a ground terminal;

    a first transistor connected between said first and third terminals;

    a second transistor connected between said second and third terminals;

    a third transistor connected between said first terminal and said ground terminal;

    a fourth transistor connected between said second terminal and said ground terminal;

    a first resistor connected between a back gate of said first transistor and said ground terminal;

    a second resistor connected between a back gate of said second transistor and said ground terminal;

    a third resistor connected between a back gate of said third transistor and said ground terminal;

    a fourth resistor connected between a back gate of said fourth transistor and said ground terminal;

    gates of said first, second, third and fourth transistors being controlled by control voltages.

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