[SI-LIST] Re: off-diagonal resistance and conductanceelements
- From: "Neeraj Pendse" <cnepsc@xxxxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Tue, 18 Feb 2003 18:07:45 -0800
Hi Tony,
Depends. If the L matrix is "partial inductance", then - to the first
order - the self inductance will not change even if the coupling did
not exists. If however the inductances are "loop inductances" then the
change in coupling will change the on-diagonal numbers.
With C, if the on-diagonal elements are SELF (not BULK), then the
on-diagonal element will change if the coupling conductors were removed
while not disturbing the ground reference.
-Neeraj
>"Dunbar, Tony" wrote:
>
> For the purposes of clarification:-
>
> Patrick initially stated "The on-diagonal parameters (e.g., L11) are
> typically stated to be the self parasitics, ..."
>
> My understanding is that, rather than being purely "self parasitics", they
> actually include the effects of coupled neighbors. As a consequence, for
> example, L11 will actually be different (lower) than it will be if the same
> primary structure existed without any coupled neighbors.
>
> Is that correct?
>
> Thanks,
> Tony Dunbar
>
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