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Noise figure in spice

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Ashtaroth

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spice noise figure

hello

how can i measure the noise figure of a mixer, using the pspice simulation program???
 

pspice noise figure

In PSPICE, make use of noise analysis in AC sweep to analyze all the possible noise sources, and then figure out the contribution of each source on the output end, so that analyze the noise characteristics of the whole circuit.

F=total output noise power / output noise due to input source

A LNA noise analysis example using Pspice avail here:
**broken link removed**
 
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