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Does any substitution of SpectreRF on Winodws?
I want to simulate a 5GHz VCO Phase noise in
my pc because the workstation is really slow
(poor department)
Use Spectre in IC5033 on Redhat7.3. Transient simulation speed scale with the CPU clock. A 2GHz Athlon is about 2x a SUN Blade. For SpectreRF consider 2-4GB memory for PSS analysis.
PSS have to store all network variables for each point of the fundamental. If you simulating a downconversion mixer from 5GHz to some MHz you have a fundamental having about 10k points. I have stressed SpectreRF in 97 with a LowIF system with 900MHz LO and 800kHz. The memory crashed >2GB on a really big SUN at this time.
The problem came up if minimum two big signals with high frequency ratio should be analysed. In this case the periodic AC analysis does not work or give incorrect result. That is important if you want simulate blocking of an RF not very far away from the wanted in a direct conversion mixer. The end result was to use transient simulation instead. In this case only a small window is running trough the memory. The number of storage could be defined in advance. So that give much relaxed resources but make SpectreRF useless. I did not consider ADS because of the fundamental algorithmic limitation which got.
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