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US 6,649,841 B2Granted
Corrugated coaxial cable with high velocity of propagation
AssigneeAndrew Corporation
InventorsVijay K. Chopra, Hugh R. Nudd, James A. Krabec
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Abstract
A corrugated coaxial cable including a core with at least one inner conductor and a highly expanded polymeric foam dielectric surrounding the inner conductor. This coaxial cable has a corrugated outer conductor closely encapsulating the foam dielectric. The corrugated coax cable is dimensioned to provide the cable with a velocity of propagation of greater than 90% of the speed of light.
Claims18
A coaxial cable comprising
- an inner conductor,
- a foamed polymeric dielectric surrounding said inner conductor and having a density below 0.17 g/cm3, and
- a corrugated outer conductor surrounding said dielectric and dimensioned to create a ratio of the actual length of said outer conductor to its linear length such that the cable has a velocity of propagation greater than 90% of the speed of light, the corrugations in said outer conductor forming troughs and crests with the troughs engaging said dielectric.
A method for producing a coaxial cable comprising:
- providing an inner conductor;
- surrounding the inner conductor with a foamed polymeric dielectric, the foamed dielectric having a density below 0.17 g/cm3;
- and
- surrounding the foamed polymeric dielectric with a corrugated outer conductor, the outer conductor forming troughs and crest with the troughs engaging the dielectric, the ratio of the actual length of the outer conductor to its linear length being selected to provide the cable with a velocity of propagation greater than 90% of the speed of light.
1 more element
Dependencies are inferred from the claim text.