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RF STEP ATTENUATOR

  • US 20090108965A1
  • Filed: 10/30/2007
  • Published: 04/30/2009
  • Est. Priority Date: 10/30/2007
  • Status: Active Grant
First Claim
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1. A PIN diode switch having a switch input port and a switch output port, the switch configured to switch between a pass-through state connecting the switch input port to the switch output port and a high impedance state isolating the switch input port from the switch output port, the switch comprising:

  • at least two series-connected long-lifetime PIN diodes each having an anode and a cathode, the respective anodes of the series-connected long-lifetime PIN diodes each connected to the switch input port and the respective cathodes of the series-connected long-lifetime PIN diodes each connected to the switch output port;

    at least two shunt-connected long-lifetime PIN diodes each having an anode and a cathode, the respective anodes of the shunt-connected long-lifetime PIN diodes connected to the respective cathodes of the series-connected PIN diodes and the respective cathodes of the shunt-connected long-lifetime PIN diodes connected to a circuit ground; and

    a control port configured to receive a control signal, control port connected to the respective cathodes of the series-connected long-lifetime PIN diodes and to the respective anodes of the shunt-connected long-lifetime PIN diodes.

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