EMI by-pass gasket for shielded connectors

Details EMI by-pass gasket for shielded connectors EMI by-pass gasket for shielded connectors

1997-08-29

1999-11-02

Bradley, Paula

Electrical connectors

Electromagnetic or electrostatic shield

Multi-part shield body

439108, 174 35GC, H01R 13648

Patent

active

059759534

ABSTRACT:
Good shielding in shielded peripheral connectors is maintained by including an EMI by-pass gasket between the cable connector and the card connector. The EMI by-pass gasket is a thin but resilient piece of metal somewhat larger than the outline of the connector to connector interface. It has a orifice therein that allows it to be between the connectors as they mate. Interior folded tabs along the edges of the orifice and parallel to the length of the connectors make compressive contact with the outer surface of the connector rim of the cable connector. A front surface or step around the backshell of the cable connector pushes the gasket toward the I/O card bulkhead plate, compressing a pair of opposing bent legs running the length of the gasket against the system enclosure. This provides a low inductance direct RF connection from the rim of the cable connector to the system enclosure (chassis), and in the process, by-passes (shunts) the ground path through the I/O card itself.

REFERENCES:
patent: 4688868 (1987-08-01), Noyes
patent: 5070216 (1991-12-01), Thornton
patent: 5204496 (1993-04-01), Boulay et al.
patent: 5266053 (1993-11-01), Jamet et al.
patent: 5317105 (1994-05-01), Weber
patent: 5404276 (1995-04-01), Hansson et al.
patent: 5686695 (1997-11-01), Chan
patent: 5838550 (1998-11-01), Morris et al.
patent: 5856632 (1999-01-01), Bostrom et al.

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