[SI-LIST] : Re: Charge moving from decoupling capacitors

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From: Barry Ma (barry_ma@altavista.com)
Date: Wed May 17 2000 - 10:48:23 PDT


Steve,

Thanks a lot for the good explanation.

Although there's no current loop going through transmission line after gate closes, any current on metal plane for regaining eqi-potential would stil cause EM field in the dielectric. The fields would move with the moving charge together at the speed of light in the dielectric.

Best Regards,
Barry
------------
On Tue, 16 May 2000, sweir wrote:
 
> Barry,
>
> That imbalance in potential is a restatement of: "The electric potential is
> different at one point in space versus another, and the plane connects
> both." The difference in potential provides an accelerating force for
> charge, and the plane provides a path for the charge to move. When the
> charge accelerates the EM wave results. The EM wave travels in the
> dielectric surrounding the plane. If the dielectric K were infinite then
> even the slightest acceleration of the charge would create an opposing
> field that would stop any propagation in its tracks.
>
> Regards,
>
>
> Steve.

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