Cortland,
The Ansoft URL's pdf comes up nil.
Going to the \thewave\ index doesn't list that .pdf
Would you send me a copy?
- Robert -
On Sun, 27 Nov 2005 20:47:48 -0500
Cortland Richmond <72146....@compuserve.com> wrote:
> Ken Javor wrote
>
> >> I didn't know what the 20 H rule was either, just
> assumed everyone else
> did... <<
>
> See
> http://www.qsl.net/wb6tpu/si-list4/0391.html
> page 9 of
>
http://www.ansoft.com/thewave/Shielding_and_Decoupling.pdf
> http://factaee.elfak.ni.ac.yu/fu2k12/fu04.html
> and others (search on "20H rule.")
>
> RF between two equally sized planes does radiate from the
> slot formed at
> the edge - but RF on a small plane over a larger one also
> radiates from the
> slot around the smaller. We don't want to put patch
> antennas on a board
> while trying to avoid other problems. Thus the
> controversy.
>
>
>
> Cortland
> KA5S
>
-
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