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Regarding simulation of VARACTORS using MOS and finding quality factor

Manu J Ptidar over 11 years ago

using IC 5.10.40

I am working on VCO using MOS Varactor(B D S connected and inversion mode)but i am facing the problems listed here..

1 Finding the capacitance and quality factor. I also want to plot these with tuning voltage.

2 Which analysis i should use for that,

3 If we see the DC operating points, there are various capacitances. Which one to be used to calculate the total capacitance.

4 Calcilating capacitance between two nodes.

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Andrew Beckett over 11 years ago

Not really enough to go on, but my guess is that you should do an sp (s-parameter) analysis. Can't really answer the other questions because you've given so little information.
Regards,
Andrew.
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Andrew Beckett over 11 years ago

Not really enough to go on, but my guess is that you should do an sp (s-parameter) analysis. Can't really answer the other questions because you've given so little information.
Regards,
Andrew.
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