Electromagnetic shielding structure of high-frequency circuit ar

Details Electromagnetic shielding structure of high-frequency circuit ar Electromagnetic shielding structure of high-frequency circuit ar

1991-09-24

1992-09-22

Picard, Leo P.

Electricity: electrical systems and devices

Miscellaneous

361395, 455300, 174 35R, 174 35MS, H05K 900

Patent

active

051502828

ABSTRACT:
An electromagnetic shielding structure of high-frequency circuit arrangements which is capable of electromagnetically shielding each high-frequency functional circuit within a narrow space. A printed-circuit board mounted with a plurality of high-frequency functional circuits is installed in the shielding case. Ribs with a long groove are formed on the inside surface of a molded plastic casing which has been treated to provide electrical conductivity, for separating the high-frequency functional circuits mounted on the printed-circuit board. In the long groove of the ribs is pressed a shielding member, and with the printed-circuit board assembled between the shielding case and the molded plastic casing, the top end of the shielding member is pressed against a ground pattern of the printed-circuit board.

REFERENCES:
patent: 4736266 (1988-04-01), Tanibe
patent: 4794489 (1988-12-01), Brown
patent: 4890199 (1989-12-01), Beutler
patent: 5045973 (1991-09-01), Saarela et al.

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