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Recent content by David2004

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    [SOLVED] how to get optimum noise impedance using spectre?

    I think that will strongly affect your linearity of your LNA design if the Vgs is very close to Vth; the ft at working point would be pretty low. Normally people set Vgt>=0.2V.
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    [SOLVED] how to get optimum noise impedance using spectre?

    I am interest in the "420um" of MOSFET, how did you set the Vgt? That will induce larger power consumption?
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    Help on IP3 simulation in cadence

    ip3 simulation slope I already tried that, still did not work.
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    Help on IP3 simulation in cadence

    lna iip3 simulation Yes, I already set PAC magnitude(dBm). Not a smooth curve, the slope is less than 3:1.
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    Help on IP3 simulation in cadence

    iip3 simulation in cadence Normally I can get IP3 from PSS or PSS/PAC simulation in IC4.46, QPSS or QPSS/QPAC simulation in IC5.0. When I designed LNA before I can easily get a clear 3:1 slope. But when I use cadence to run the IP3 simulation over one single device, I can not get the same 3:1...
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