Abstract: Detecting the source of a defect in a cable may be difficult, in part because present systems may be configured to wind and unwind the cable on many different spools, capstans or other transport equipment. Provided are systems and methods in which a laser speed gauge is used to measure the rotation of a cable assembly component and determine any abnormalities in the rotation (e.g., vibrations, periodic increases/decreases in speed). An example method includes receiving, by a computing device and from a laser speed gauge, a first reading of a rotating cable assembly component. The computing device may covert the first reading of the rotating cable assembly component to a frequency analysis of the rotating cable assembly component and determine based on the frequency analysis of the rotating cable assembly component, a structural defect in a cable caused by the rotating cable assembly component.

Abstract: Detecting the source of a defect in a cable may be difficult, in part because present systems may be configured to wind and unwind the cable on many different spools, capstans or other transport equipment. Provided are systems and methods in which a laser speed gauge is used to measure the rotation of a cable assembly component and determine any abnormalities in the rotation (e.g., vibrations, periodic increases/decreases in speed). An example method includes receiving, by a computing device and from a laser speed gauge, a first reading of a rotating cable assembly component. The computing device may covert the first reading of the rotating cable assembly component to a frequency analysis of the rotating cable assembly component and determine based on the frequency analysis of the rotating cable assembly component, a structural defect in a cable caused by the rotating cable assembly component.

Abstract: A coaxial cable includes: an inner conductor; a dielectric layer surrounding the inner conductor; an outer conductor surrounding the dielectric layer and having a plurality of corrugations, wherein each of the corrugations has a root and a crest connected by a transition section; a jacket surrounding the outer conductor; and a first adhesive layer interposed between the dielectric layer and the roots of the corrugations of the outer conductor. Each of the roots has a curved flattened portion that is adhered to the first adhesive layer.

Abstract: A coaxial cable includes: an inner conductor; a dielectric layer surrounding the inner conductor; and an outer conductor having a plurality of corrugations. Each of the corrugations has a root and a crest connected by a transition section. The root has a first radius of curvature, the crest has a second radius of curvature, and the ratio of the first radius of curvature to the second radius of curvature is equal to or greater than 1.

Abstract: A stripline RF transmission cable has a generally planar inner conductor surrounded by a dielectric layer that is surrounded by a corrugated outer conductor. The corrugations may be, for example, annular or helical. The outer conductor has a top section and a bottom section which transition to a pair of edge sections that interconnect the top section with the bottom section. The top section, bottom section and the inner conductor may be provided with generally equal widths. A spacing between the inner conductor and the dielectric layer may be reduced proximate a mid section of the inner conductor. The inner conductor may also be corrugated generally normal to a longitudinal extend of the inner conductor.

Abstract: A method for making a coaxial cable including an inner conductor, an outer conductor, and a dielectric material layer therebetween may include forming the inner conductor by at least forming a bimetallic strip into a tubular bimetallic layer having a pair of longitudinal edge portions at a longitudinal seam. The bimetallic strip may include an inner metal layer and an outer metal layer bonded thereto and coextensive therewith. Each of the longitudinal edge portions may be folded over. The method may also include forming a welded joint between adjacent portions of the folded over longitudinal edge portions and defining surplus material at the welded joint. The method may further include removing the surplus material at the welded joint and forming the dielectric material layer surrounding the inner conductor. The method may also include forming the outer conductor surrounding the dielectric material layer.

Abstract: A stripline RF transmission cable has a generally planar inner conductor surrounded by a dielectric layer that is surrounded by a corrugated outer conductor. The corrugations may be, for example, annular or helical. The outer conductor has a top section and a bottom section which transition to a pair of edge sections that interconnect the top section with the bottom section. The top section, bottom section and the inner conductor may be provided with generally equal widths. A spacing between the inner conductor and the dielectric layer may be reduced proximate a mid section of the inner conductor. The inner conductor may also be corrugated generally normal to a longitudinal extend of the inner conductor.

Abstract: A method for making a coaxial cable including an inner conductor, an outer conductor, and a dielectric material layer therebetween may include forming the inner conductor by at least forming a bimetallic strip into a tubular bimetallic layer having a pair of longitudinal edge portions at a longitudinal seam. The bimetallic strip may include an inner metal layer and an outer metal layer bonded thereto and coextensive therewith. Each of the longitudinal edge portions may be folded over. The method may also include forming a welded joint between adjacent portions of the folded over longitudinal edge portions and defining surplus material at the welded joint. The method may further include removing the surplus material at the welded joint and forming the dielectric material layer surrounding the inner conductor. The method may also include forming the outer conductor surrounding the dielectric material layer.

Abstract: A method for making a coaxial cable including an inner conductor, an outer conductor, and a dielectric material layer therebetween may include forming the inner conductor by at least forming a bimetallic strip into a tubular bimetallic layer having a pair of longitudinal edge portions at a longitudinal seam. The bimetallic strip may include an inner metal layer and an outer metal layer bonded thereto and coextensive therewith. Each of the longitudinal edge portions may be folded over. The method may also include forming a welded joint between adjacent portions of the folded over longitudinal edge portions and defining surplus material at the welded joint. The method may further include removing the surplus material at the welded joint and forming the dielectric material layer surrounding the inner conductor. The method may also include forming the outer conductor surrounding the dielectric material layer.

Abstract: A coaxial cable may include an inner conductor, an outer conductor, and a dielectric material layer therebetween. The inner conductor may include a tubular bimetallic layer having a pair of opposing longitudinal edges at a longitudinal seam. The tubular bimetallic layer may include an inner metal layer and an outer metal layer bonded thereto with the inner metal layer having a lower melting point than the outer layer. At least one of the opposing longitudinal edges of the tubular bimetallic layer may be at least partially bevelled. In addition, the longitudinal seam may include a welded joint between at least portions of the opposing longitudinal edges.

Abstract: A coaxial cable may include an inner conductor, an outer conductor, and a dielectric material layer therebetween. The outer conductor may include a tubular bimetallic layer having a pair of opposing longitudinal edges at a longitudinal seam. The tubular bimetallic layer may include an inner metal layer and an outer metal layer bonded thereto with the outer metal layer having a lower melting point than the inner layer. At least one of the opposing longitudinal edges of the tubular bimetallic layer may be at least partially beveled. In addition, the longitudinal seam may include a welded joint between at least portions of the opposing longitudinal edges.

Abstract: A coaxial cable may include an inner conductor, an outer conductor and a dielectric material layer therebetween. The outer conductor may include a tubular bimetallic layer and may have a pair of opposing longitudinal edge portions at a longitudinal seam. The tubular bimetallic layer may include an inner metal layer and an outer metal layer bonded thereto and coextensive therewith. In addition, the opposing longitudinal edge portions may be angled outwardly to define a pair of adjacent outwardly extending tabs.

Abstract: A coaxial cable may include an inner conductor, an outer conductor, and a dielectric material therebetween. The outer conductor may include a tubular bimetallic layer having a pair of opposing longitudinal edge portions at a longitudinal seam. The tubular bimetallic layer may include an inner metal layer and an outer metal layer bonded thereto. At least one of the opposing longitudinal edge portions may define at least one folded edge portion including an end portion of the outer metal layer extending beyond a corresponding end portion of the inner metal layer and being folded adjacent thereto and defining a non-joined interface therewith. The longitudinal seam may include a welded joint between at least portions of the outer metal layer.

Abstract: A method for making a coaxial cable including an inner conductor, an outer conductor, and a dielectric material layer therebetween may include forming the inner conductor by at least forming a bimetallic strip into a tubular bimetallic layer having a pair of longitudinal edge portions at a longitudinal seam. The bimetallic strip may include an inner metal layer and an outer metal layer bonded thereto and coextensive therewith. Each of the longitudinal edge portions may be folded over. The method may also include forming a welded joint between adjacent portions of the folded over longitudinal edge portions and defining surplus material at the welded joint. The method may further include removing the surplus material at the welded joint and forming the dielectric material layer surrounding the inner conductor. The method may also include forming the outer conductor surrounding the dielectric material layer.

Abstract: A coaxial cable may include an inner conductor, an outer conductor, and a dielectric material therebetween. The inner conductor may include a tubular bimetallic layer having a pair of opposing longitudinal edge portions at a longitudinal seam. The tubular bimetallic layer may include an inner metal layer and an outer metal layer bonded thereto. At least one of the opposing longitudinal edge portions may define at least one folded edge portion including an end portion of the inner metal layer extending beyond a corresponding end portion of the outer metal layer and being folded adjacent thereto and defining a non-joined interface therewith. The longitudinal seam may include a welded joint between at least portions of the inner metal layer.

Abstract: A coaxial cable may include an inner conductor, an outer conductor and a dielectric material layer therebetween. The inner conductor may include a tubular bimetallic layer and may have a pair of opposing longitudinal edge portions at a longitudinal seam. The tubular bimetallic layer may include an inner metal layer and an outer metal layer bonded thereto and coextensive therewith. In addition, the opposing longitudinal edge portions may be angled inwardly to define a pair of adjacent inwardly extending tabs.

Abstract: A coaxial cable may include an inner conductor, an outer conductor, and a dielectric material therebetween. The inner conductor may include a tubular bimetallic layer having a pair of opposing longitudinal edge portions at a longitudinal seam. The tubular bimetallic layer may include an inner metal layer and an outer metal layer bonded thereto. At least one of the opposing longitudinal edge portions may define at least one folded edge portion including an end portion of the inner metal layer extending beyond a corresponding end portion of the outer metal layer and being folded adjacent thereto and defining a non-joined interface therewith. The longitudinal seam may include a welded joint between at least portions of the inner metal layer.

Abstract: A coaxial cable may include an inner conductor, an outer conductor, and a dielectric material therebetween. The outer conductor may include a tubular bimetallic layer having a pair of opposing longitudinal edge portions at a longitudinal seam. The tubular bimetallic layer may include an inner metal layer and an outer metal layer bonded thereto. At least one of the opposing longitudinal edge portions may define at least one folded edge portion including an end portion of the outer metal layer extending beyond a corresponding end portion of the inner metal layer and being folded adjacent thereto and defining a non-joined interface therewith. The longitudinal seam may include a welded joint between at least portions of the outer metal layer.

Abstract: A coaxial cable may include an inner conductor, an outer conductor, and a dielectric material layer therebetween. The outer conductor may include a tubular bimetallic layer having a pair of opposing longitudinal edges at a longitudinal seam. The tubular bimetallic layer may include an inner metal layer and an outer metal layer bonded thereto with the outer metal layer having a lower melting point than the inner layer. At least one of the opposing longitudinal edges of the tubular bimetallic layer may be at least partially bevelled. In addition, the longitudinal seam may include a welded joint between at least portions of the opposing longitudinal edges.

Abstract: A coaxial cable may include an inner conductor, an outer conductor and a dielectric material layer therebetween. The outer conductor may include a tubular bimetallic layer and may have a pair of opposing longitudinal edge portions at a longitudinal seam. The tubular bimetallic layer may include an inner metal layer and an outer metal layer bonded thereto and coextensive therewith. In addition, the opposing longitudinal edge portions may be angled outwardly to define a pair of adjacent outwardly extending tabs.