how to simulate mixer noise?

[liletian]

Hi guys
Can anyone give me some suggestion on how to simulation mixer noise? Should I use Sp simulator or HB simulator with noise enabled? What's the difference for those two simulator's noise? are they the same? If not, which noise should I believe?
Thanks a lot[/quote]

 

[mbyoussef]

You cannot use SP analysis with mixer noise. SP is a small signal linear simulation that does not take into account frequency translation. (Although I heard about Spectre RF's Periodic SP simulator - PSP that can be used to calculate the noise figure for periodically varying circuits).

You can use HB simulator in ADS or PSS/PNOISE in Cadence.

http://eesof.tm.agilent.com/pdf/Mixers.pdf
**broken link removed**

 

[pancho_hideboo]

See https://www.designers-guide.org/Forum/YaBB.pl?num=1184111670

This is true for HB Analysis in RFDE(ADS).
PSS --> 1 Tone HB Analysis
QPSS --> 2 Tone HB Analysis

 

[khouly]

in SP analysis in ADS there is a noise simulation but this is not accurate , the accurate is to use HB amalysis with noise controller

khouly

 

[vickkey20]

Use H.B simulation for ADS which gives the correct noise analyses

 

[imar]

hi!
there are many kind of NF analysis in Spectre RF and eatch of gives a different result. so i think that we sould specify the type.
is it PSS&Pnoise?
is it Qpss&Qpnoise?
is it PSP&Pnoise?
thanks

 

[pancho_hideboo]

hi!
there are many kind of NF analysis in Spectre RF and eatch of gives a different result. so i think that we sould specify the type.
is it PSS&Pnoise?
is it Qpss&Qpnoise?
is it PSP&Pnoise?
thanks

See https://www.designers-guide.org/Forum/YaBB.pl?num=1184111670

 

[victoriya]

there is atutorial about it.
View attachment LAB2_Mixer_Tutorial.pdf