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Recent content by caesarye

  1. C

    How to know the exact cutoff frequency of a waveguide?

    Re: Cutoff frequency I think you can change output format of the data.If you watch the data in a table ,you can see the cut-off frequency easily.
  2. C

    How to convert mV to db?

    db to mv converter jallem's formulas are right.Of course ,ypu can calculate more easily.First, you need computate the power with the voltage,Vrms(V)]^2/R. Attention here ,the impedance 's value is 50 Ω or the charateristic impedance of your system. Then you can convert the power from Watt to...
  3. C

    What type of inductor to choose fro low pass LC filter 40MHz

    Re: Selection of inductor I think you'd better use air.For you can adjust the inductance quantity in the filter real-time.It's very helpful when you are tuning it.And you can get a inducot more easily and quickly.The frequency is not a problem.In the high-frequency filter(usually several...
  4. C

    Voltage rise delay circuit

    I think you may use a capacitor.What you want to do is to delay the output signal of the sensor.Add a parallel capacitor in the path between the sensor and the MCU. Because th e capacior will slow the rise speed of the signal ,perhaps it will do.
  5. C

    how to calcuate the insertion loss of a PIN diode switch?

    I am designing a switch with PIN diode .I want to know the insertion loss before simulation.But I can't find a fomula to impelet it ?Who can help ?Please!

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