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US 6,310,784 B1Granted
Densely arranged electrically shielded communication panels
AssigneeMarconi Communications, Inc.
InventorsGeorge H. BuAbbud, John W. Matthes, Janet A. Bradshaw, Muneer Zuhdi
Life of this patent
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Abstract
Apparatus and method for supporting a large number of densely arranged and electrically shielded panels are disclosed. To achieve shielding each panel has a grounded back plane which acts as shielding for circuitry on an adjacent panel as well as shielding for its own circuitry.
Claims10
An apparatus for supporting a multiplicity of densely-arranged and electrically-shielded panels comprising:
- a distribution rack having a structure for supporting at least two adjacent panels, said rack including an electrical connection point;
- at least two panels carrying electrical signals supported adjacent and in close alignment to each other by said rack, each of said at least two panels comprising:
- a face plate for securing said panels to said rack;
- a printed circuit board extending perpendicularly away from said face plate, said printed circuit board including an insulating substrate having a circuit side and a back side, a printed circuit on said circuit side of said insulating substrate, and a conductive sheet secured to and substantially covering said back side of said substrate;
- a low resistance conductive path between said conductive sheet and said
- electrical connection point on said rack;
- and
- said adjacent and closely aligned at least two panels supported in an arrangement by said rack such that the printed circuit of one of said panels is electrically shielded on its back side by the conductive sheet on that same panel and on its circuit side by the conductive sheet of the adjacent panel.
5 more elements
A method for supporting and shielding a multiplicity of densely arranged electrical panels comprising the steps of:
- providing an electrical connection point in a distribution rack;
- supporting at least two adjacent panels in said distribution rack in close alignment to each other each of said panels having a face plate;
- securing said face plate of each of said at least two adjacent panels to said rack for each of said at least two adjacent panels;
- attaching a printed circuit board having an insulated substrate with a circuit side and a back side to said face plate so said circuit board extends perpendicular away from said face plate;
- providing a printed circuit on said circuit side of said insulating substrate;
- covering said back side of said insulating substrate with
- a conductive sheet;
- and
- providing a low resistance conductive path between said conductive sheet and said electrical connection point on said distribution rack of each of said at least two adjacent panels such that each the printed circuit on one of said panels is electrically shielded on its back side by the conductive sheet on that same panel and on its circuit side by the conductive sheet of the adjacent panel of the another one of said at least two adjacent panels.
6 more elements
Dependencies are inferred from the claim text.