noise simulation of the mixer

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nxing

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Hi there,

I have a question about the noise simulation, from the Cadence tutorial, there are three ways to simulate the mixers NF: PNOISE with a DC input at RF port, the PSP following a PSS and QPNOISE following QPSS. I am wondering which one is more accurate? Even from the tutorial, I can see that the simulation results from the former two are different.

Thanks

nxing
 

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