I want to simulate the Noise figure for such a setup that first a band pass filter, then sample and hold, and then follower by amplifier, and ADC and so on.
Can i get the noise figure from source to each stage with Pnoise?
I understand that if the output is specified with voltage of two node but NOT specified by a port or probe, it won't exclude the noise from next stages in the NF calculation. So eventually, this is not the noise figure exactly upto such stage.
But how could I get the correct noise figure for each stage. And what i want to see is that the NF can be validated with just accumulate from one stage to the following. like NF04=NF01+NF12+NF23+NF34, where NF04 means NF from source to 4th stage.
Thanks a lot.