Does anybody have data they're willing to share which shows the
     relationship between shielding effectiveness over frequency vs.
     various ground plane/shield layer relief schemes?

     For instance, in a flex design I'd want to remove copper in a plane
     for flexibility.  In a rigid design, I might want to remove copper to
     better achieve balance.  But, I can't do either if "putting holes" in
     the plane causes shielding problems.

     Thanks for any help.

     Andy Pedersen
     Harris Corp.
     [log in to unmask]

     p.s. The shielding effectiveness question holds for silver filled
     epoxy over-coats.

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