摘要:
A cable (210) includes a center conductor (220). An insulating material in the form of a layer (225) surrounds the center conductor. A sparse shield (232) partially surrounds the insulating material. The sparse shield may include a plurality of conductors, which are grouped adjacent to one another within a space around the insulating layer that has a length that is less than 25% of the total circumference of the insulating layer. An insulating jacket (227) covers the sparse shield and the remainder of the cable. The cable may be used in a cable assembly (10).
摘要:
A micro coaxial cable with a high bending performance, having an inner conductor; an insulating layer configured to surround the inner conductor, and a helical winding conductor configured to surround the insulating layer and having an elongation of 1.5 to 4% and a pitch of 3.0 to 5.0 mm.
摘要:
A coaxial cable includes a center conductor, a dielectric layer extending around the center conductor, and an outer conductor extending around the dielectric layer. The outer conductor includes winding turns wrapped along a helical path around the dielectric layer in a first lay direction. A wire layer extends around the outer conductor. The wire layer includes winding turns wrapped along a helical path around the outer conductor in a second lay direction. The second lay direction is opposite to the first lay direction.
摘要:
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.
摘要:
An extremely low-attenuation, and extremely low radiation loss, flexible coaxial cable for microwave energy in the high gigaHertz (GHz) frequency range includes a solid single-strand, smooth, silver-plated center conductor surrounded by a flexible dielectric medium with a plurality of longitudinal, parallel, contiguous conductive strands adjacent to the low-loss dielectric medium for defining the inner surface of the outer conductor concentric about the center conductor. Each of these strands is smooth silver plated. All of these strands run parallel one to another extending longitudinally of the cable, and they are sufficiently numerous for forming at least two full layers of these strands surrounding the dielectric medium. The inner layer of strands is contiguous to the dielectric medium, and the next layer comprises strands nesting in the valleys defined by the respective neighboring strands of the inner layer. These parallel strands are retained tightly embraced against the dielectric medium and against each other by a continuous, uniform, tightly fitting, squeezing wrapping serving of strong, fine filaments or fibers which are wound tightly around the conductive strands of the outer conductor. An outer jacket of flexible impermeable material, such as plastic, surrounds the wrapping serving for protecting the cable.
摘要:
A shielded cable includes a core comprising an insulated wire including an inner conductor and an insulation layer formed on an outer periphery of the inner conductor, a shield layer formed on an outer periphery of the core, and a jacket layer formed on an outer periphery of the shield layer. The shield layer includes a stranded conductor shield layer including a stranded conductor spirally wound around the core, and the stranded conductor includes a plurality of conductor strands stranded together. The shield layer may further include a tinsel copper braided shield layer or a metal plated strand braided shield layer that is formed between the core and the stranded conductor shield layer.
摘要:
A cable providing noise rejection in a wide frequency range. A cable has an inner section, an outer section and a jacket. The inner section may contain one or more core conductors that are surrounded by a common insulation, which is surrounded by a shield. The outer section contains one or more pairs of outer conductors that are positioned around the inner section. In each pair of outer conductors, the outer conductors are positioned 180° from each other. The outer conductors may be located parallel to the central axis of the inner section. In another embodiment of the present invention, the outer conductors spirally wind around the inner section while substantially maintaining their relative positions.
摘要:
A wide band high frequency compatible electrical coaxial cable is provided with an outer conductor, a dielectric, and an inner conductor that is arranged about a plastic core and includes an inner layer of film that is surrounded by and in electrical contact with a plurality of twisted round conductors. A pressurized cooling fluid is circulated within the plastic core for high load applications such as supplying power to a laser.
摘要:
A coaxial cable having a tape with a metal deposited thereon which is wound over a laterally wound shielding layer which is, in turn, formed over an insulation layer about the conductor. The tape includes a plastic tape and a metal layer deposited on the plastic tape, and the tape is disposed such that the metal layer is in contact with the laterally wound shielding layer. Improved high frequency shielding characteristics are obtained using this structure without sacrificing cable flexibility.
摘要:
A cable for prospecting, said cable including a core of conductor wires (3) surrounded by insulating material (4) and by armour (7, 8) formed by at least one layer of helically wound steel wires. It includes, from its center to its periphery, inside the armour, an axial monofilament (2) made of a polymer that withstands high temperatures, said monofilament forming the insulation of an inner conductor (1), an outer conductor (5) and a sheath (6) made of a thermoplastic substance that withstands high temperatures, said inner conductor serving a different electrical function than said core of conductor wires.