Error when simulating PSS and PSP

Hi,

when i simulated PSS+PSP, the error occured. please see the picture i submitted.

but in both PSS and PSP, maximum sideband is set to only 10. IF=10MHz, RF=1.61GHz. In PSP, Frequency Sweep Range is -10M~20M.

please help me!

Show me portions of netlist regarding PSS/PSP setting and signal sources.
Maybe your ploblem is resolved if you use "select from range" not "max sideband".

port: LO:sin,1.6G///RF:sin,1.61G///IF: dc

PSS:
beat frequency---1.6G
number of harmonics-----10
accuracy defaults----moderate

PSP:
start-stop -10M~20M
select port: 1 RF -1.62G~-1.59G
2 IF 0~30M
maximum sideband-----10

Thanks very much!

In your circuit, two large signals are involved.
So　fundamental frequemcy can't be 1.6GHz.
Your fundamental frequency has to be 0.01GHz=10MHz.

http://www.designers-guide.org/Forum...num=1184111670

Do you realy have to do simulations with two large signals ?
Your fundamental frequency is 10MHz, and it seems that you do high order MIC-Shooting-PSS. So it will take much time for simulation completion.
Why don't you use HB-QPSS/QPSP if you truely have to do simulations with two large signals.

Show me netlist like following.

parameters ifres=50 re=450 rc=1k prf=-30.
+ vlo=0.316227766 frf=900M flo=1G plo=-10

lo (Plo 0) port r=50 num=2 type=sine freq=flo
+ ampl=vlo fundname="flo"

rif (Pif 0) port r=ifres num=3 dc=0 type=dc

rf (Prf 0) port r=50 num=1 type=sine freq=frf
+ dbm=prf fundname="frf"

pss pss fund=100M harms=30 method=gear2only relref=alllocal
+ annotate=status maxiters=15
psp psp sweeptype=relative start=-20M stop=30M ports=[rf rif]
+ portharmsvec=[-9 1] donoise=yes maxsideband=50 annotate=status
+ freqaxis=out