[SI-LIST] Re: diff-pair via impedance
- From: steve weir <weirsi@xxxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Tue, 10 Jun 2014 06:54:44 -0700
Neither case are bounded problems.
Steve.
On 6/10/2014 6:25 AM, Sipe, Dennis (ES) wrote:
> Hello all.
> The equation for impedance calculation of a single via is the one for coax
> cable.
> I cannot find one for a diff-pair via; two vias within an oval anti-pad.
> I could use HFSS to do the calculations, but a simple equation should fall
> out from that.
> Can anyone point to a reference? Google was not my friend today.
>
> Thanks,
> Dennis
>
>
>
>
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