Shielded coaxial cable and method of making same
AssigneeCommScope Properties, LLC
InventorMichael K. Drum
Life of this patent
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Abstract
The present invention is a low cost coaxial drop cable having excellent flexibility and shielding coverage. The shielded coaxial cable of the invention includes an elongate center conductor, a dielectric layer surrounding the center conductor, an electrically conductive shield surrounding the dielectric layer, a first plurality of elongate wires surrounding the electrically conductive shield, and a protective jacket surrounding the plurality of elongate wires. The elongate wires have an elliptical cross section with a major axis to minor axis ratio of from greater than 1:1 to less than 5:1. The present invention further includes a method of making the coaxial cable of the invention.
Claims24
A shielded coaxial cable, comprising:
- an elongate center conductor;
- a dielectric layer surrounding said center conductor;
- an electrically conductive shield surrounding said dielectric layer;
- a first plurality of elongate wires surrounding said electrically conductive shield;
- said first elongate wires having an elliptical cross section with a major axis and a minor axis and a major axis to minor axis ratio of from greater than 1:1 to less than 5:1;
- and
- a protective jacket surrounding said plurality of elongate wires.
A shielded coaxial cable, comprising:
- an elongate center conductor;
- a dielectric layer surrounding said center conductor and bonded thereto;
- a bonded metal-polymer-metal laminate tape extending longitudinally along the cable and having overlapping longitudinal edges, said laminate tape surrounding said dielectric layer and bonded thereto;
- a plurality of elongate wires helically arranged around said electrically conductive shield;
- said elongate wires having an elliptical cross section with a major axis an a minor axis such that the major axis to minor axis ratio is from 1.5:1 to 3:1 and arranged such that the surfaces corresponding to the major axes of the elongate wires contact the underlying laminate tape;
- and
- a protective jacket surrounding said plurality of elongate wires.
A method of making a shielded cable comprising the steps of:
- advancing a center conductor along a predetermined path of travel;
- applying a dielectric layer around the center conductor;
- applying an electrically conductive shield around the dielectric layer;
- arranging a plurality of elongate wires around the electrically conductive shield;
- said elongate wires having an elliptical cross section with a major axis to minor axis ratio of from greater than 1:1 to less than 5:1
- applying a cable jacket around the plurality of elongate wires.
Dependencies are inferred from the claim text.