Magnetically-attachable EMI shielding cover for attenuating electromagnetic emanation

For use in a system having a metal shielding enclosure, wherein the metal shielding enclosure has one or more holes, slots, or other apertures susceptible to EMI emanation, an EMI shielding cover comprising:

• an electrically conductive planar sheet, having first and second faces, and having sufficient size to cover a selected one of said holes, slots, or other apertures;
• a magnetic planar sheet, juxtaposed to said first face of said conductive planar sheet,
• whereby said magnetic planar sheet holds said second face of said conductive planar sheet over at least one of said holes, slots, or other apertures in said shielding enclosure.

For use in a system having metal cabinet shielding, an EMI shielding cover comprising:

• conductive means for covering one or more openings in said metal cabinet shielding, and for making at least some electrical contact with said metal cabinet shielding around said one or more openings;
• and
• magnetic means for holding said conductive means against said metal cabinet shielding.

A method of attenuating EMI emanation from an aperture in metal cabinet shielding, the method comprising the steps of:

• covering the aperture with an electrically conductive material;
• and
• holding said electrically conductive material over the aperture with at least one magnetic element, wherein said magnetic element is oriented such that the magnetic attraction is towards said metal cabinet shielding.