[SI-LIST] Re: Blog: Gaps in return planes

  • From: Carson Au <carson.au@xxxxxxxxx>
  • To: ken@xxxxxxxxxxxxxxxx
  • Date: Sun, 20 Apr 2014 08:02:52 +1000

Circumstances where the reference plane for some transmission lines is a
split power plane with many different rails, and where there is an adjacent
ground plane to this power plane with very thin dielectric height. The
inter-plane capacitance would essentially be your "stitching" capacitors -
although with much lower inductance, much preferred for fast edge rates.

On Sun, Apr 20, 2014 at 5:58 AM, Ken Wyatt <ken@xxxxxxxxxxxxxxxx> wrote:

> Hi All,
> I just posted the following - “Gaps in return planes - yes or no?”
>
> I present arguments from an EMC and SI viewpoint where I feel they can be
> bad news, but I’d be interested in cases or scenarios where gaps in return
> planes are OK or maybe even preferred.
>
>
> http://www.edn.com/electronics-blogs/the-emc-blog/4429950/Gaps-in-return-planes---yes-or-no-
>
> Your insightful thoughts are solicited…
>
> Cheers, Ken
>
> _______________________
> Ken Wyatt
> Wyatt Technical Services LLC
> ken@xxxxxxxxxxxxxxxx
> www.emc-seminars.com
> Phone: (719) 310-5418
>
>
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