Hi,
I have some promblems on VCO Post-simulation of PSS and Pnoise. The Frequency of the VCO is 20GHz. When I simulate the schematic, everything is good. But when I comes to Post-simulation, there will always be the error "no insufficient memory".
At first, I can't finish the pss and one of my classmates told me to set a swapfile. It's very useful and I can finished pss in about an hour. But now, I can finish the pnoise.
My parasitic resistor number is about 70,000. I try to run PEX with the output "C+CC", and the two simulation can finish quickly. So, is the parasitic resistor number is too much? Or there is something wrong in my setup.
My setup is followed:
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pss
engineshooting
Beatfrequency18.46GHz(I have simulate transient to be sure of the oscillating frequency.)
Number of harmonics11
Accuracy Defaultsconservative
tstab40n(it is stable nearly 20ns.)
Oscillator ON and OP
Options
swapfileset already
methodgear2only
tstabmethodgear2only
Pnoise
sweeptypedefaultrelative harmonic 1
frequency sweep range10k100M
Points per Decade10
Maxmum sideband11
voltageONOP
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And I also select "Run with 64 bit binary" in the Environment setup
This problem has confused me for a long time, and I have googled it, but didn't find something helpful.
I would appreciate it very much if anyone would help me with it.
As I'm in UTC+8, so maybe I can't reply immediately.