Electricity: electrical systems and devices – Miscellaneous
Patent
1989-10-24
1991-07-23
Picard, Leo P.
Electricity: electrical systems and devices
Miscellaneous
174 35R, 174 35GC, H05K 900
Patent
active
050348566
ABSTRACT:
A modular housing assembly is provided for two incompatible circuits, for example an RF circuit and a digital circuit, mounted on the same printed circuit board. The housing assembly has a base member and a cover member which are meshed to form two double walled compartments separated by a double conducting wall. The circuit board has at least one bridge physically and electrically connecting the two cicuits on the board which bridges pass through corresponding channels in the separating wall and each contain a matrix of plated through holes which operate to extend the wall through the bridge. Interconnecting wiring is woven through the holes to pass desired signals. Filters are provided between the interconnecting wiring and each circuit to eliminate conductive interference. Conductive gaskets are provided at all junctions of the separating wall with a housing member or with a circuit board to further reduce radiation leakage between the circuits.
REFERENCES:
patent: 4628412 (1986-12-01), Nigorikawa
patent: 4661888 (1987-04-01), Jewell et al.
patent: 4747019 (1988-05-01), Ito et al.
Cook Gordon V.
Kotfila Mark S.
Risley Curtis A.
Stanley Dick
Telford Larry E.
Hewlett--Packard Company
Picard Leo P.
Schuette Richard F.
Sparks Donald A.
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