W. L. Gore & Associates, Inc.

Craig R Theorin

William G Hardie

Edward L Kozlowski, Jr

James R Broomall

Peter A Widdoes

Christine Mulrooney

Herbert G Van Deusen

Christine M Foster

A composite conductor having improved high frequency signal transmission characteristics is provided which includes a conductive base and a conductive coating. The relationship between the conductivity and the permeability of the conductive base and the conductive coating is given by the following expression: ##EQU1##

Composite conductor having improved high frequency signal transmission

A quad or dual differential pair cable for bi-directional high speed differential signal transmission has a first differential pair of conductors and a second differential pair of conductors. The conductors extend in substantially parallel relation to one another and are electrically insulated from each other by an insulating dielectric. The dielectric and the conductors are surrounded by a conductive metal shield. The dielectric insulates the conductors both from each other and from the shield and is sufficiently crush resistant to maintain the conductors in substantially parallel relation to one another over the length of the cable, The shield may be covered with an optional jacket. Each wire of a differential pair of wires are oriented 180 degrees apart from one another. The distance between any one of the conductors and the shield is equal to or greater than the distance between that conductor and a center axis of the cable.

Multiple differential pair cable

A twin axial or parallel pair cable for high data rate differential signal transmission with extremely low skew. The cable has first and second plated electrical conductors which extend in substantially parallel relation to one another. Preferably the conductors are surrounded by first and second foamed fluoropolymer insulating dielectrics, respectively. The dielectrics and the conductors are surrounded by a braided metal shield of plated electrical conductors. The dielectrics insulate the conductors from each other and from the shield, and are sufficiently crush resistant to maintain the conductors in substantially parallel relation to one another over the length of the cable. The shield may be covered with an optional jacket.

Twin-ax cable

A jacketed coaxial cable including two or more metal shielding layers, including semiconductive polymer coated tape layers surrounding the drain wires, insulation, and center conductor thereof, the jacket thereof being semiconductive or alternatively non-conductive.

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Landenberg, PA, United States of America

Craig R Theorin