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Simulators >> RF Simulators >> PSS+PAC and PSS+PXF
https://designers-guide.org/forum/YaBB.pl?num=1288251405

Message started by LSD on Oct 28^th, 2010, 12:36am

Title: PSS+PAC and PSS+PXF
Post by LSD on Oct 28^th, 2010, 12:36am

I simulated a LNA+Mixer's voltage conversion gain versus RF frequency,the large signal LO is 2.4GHz the small signal RF is 2.402GHz, when I use PSS+PAC the Gain is 24.45dB,but 20dB in PSS+PXF analyse,they are not equal,why?

Title: Re: PSS+PAC and PSS+PXF
Post by Ken Kundert on Oct 28^th, 2010, 9:13am

In PAC, the sideband is specified relative to the input, in PXF it is specified relative to the output, so in general you would not use the same sideband to simulate the same game term in the different analyses. What did you specify for the desired sideband in the two analyses?

-Ken

Title: Re: PSS+PAC and PSS+PXF
Post by LSD on Oct 28^th, 2010, 6:37pm

Ken Kundert wrote on Oct 28^th, 2010, 9:13am:

in PAC I set the "input frequency sweep range" as "single-point" at 2.402GHz.in PXF I set the "output frequency sweep range" as "single point" at 2MHz

Title: Re: PSS+PAC and PSS+PXF
Post by Ken Kundert on Oct 28^th, 2010, 11:57pm

And what sidebands are you observing?

-Ken