LC tank characterisation

Hello All,

I am characterising an inductor and varactor configuration for use in an LC-tank using Cadence.

My tank architecture is intended to look something like the following:

VCO_Architecture.pdf

I am characterising the inductor and varactor configuration seperately via one-port sp-analysis through the following
circuits:

Characterisation.pdf

From these above circuits I extract the S11 parameter and from here get the Q, C, L etcs.

My question is simple: Are my characterisation circuits representative of what the components
will be actually seeing in the LC-tank?

Any feedback comments would be greatly appreciated.

Thanks in advance and all the best,

Diarmuid

Hello again,

Just to re-iterate, I am concerned that the my characterisation represent differential configurations.

Eg. I am using an inductor with single-ended excitation but I think the characterisation may be differentially excited.
Then the varactors employ single-ended tuning. Bit confused here so any help is most appreciated!

Thanks,