[SI-LIST] AW: Effect of shielding on characteristic Impedance
- From: "Havermann, Gert" <Gert.Havermann@xxxxxxxxxxx>
- To: "si-list@xxxxxxxxxxxxx" <si-list@xxxxxxxxxxxxx>
- Date: Thu, 11 Jul 2013 11:11:23 +0000
To put it simple: The inductance is formed by the currents, and that includes
the return currents.
The signal currents will introduce a return current on any nearby metal. The
inductance of this loop (trace / nearby metal) is affecting the trace
inductance as it is set parallel to the other inductances of any other return
path.
BR
Gert
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-----Ursprüngliche Nachricht-----
Von: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] Im
Auftrag von Dhamija, Naresh
Gesendet: Donnerstag, 11. Juli 2013 13:00
An: si-list@xxxxxxxxxxxxx
Betreff: [SI-LIST] Effect of shielding on characteristic Impedance
Hi,
Can anyone explain how a nearby quiet trace can effect the trace impedance in
stripline. I want to consider both case when the shielding trace is grounded
and floating.
It is obvious that capacitance of the target trace is going to be changed, but
how inductance is affected is the open question?
Regards
Naresh
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- » [SI-LIST] AW: Effect of shielding on characteristic Impedance - Havermann, Gert
