Abstract: A system for forming a radiating cable includes radiating machine tool having a cable receiving channel and a carriage. The carriage includes an aperture configured to align with the cable receiving channel, and a milling motor having a milling cutter. A radiating machine tool also includes a carriage receiving structure. A radiating machine is in communication with one or more controllers that receives a feeding speed associated with feeding a coaxial cable into the cable receiving channel, receives a pattern, determines a speed of rotation of the carriage by analyzing the feeding speed and the pattern, causes the carriage to rotate about the axis at the determined speed, and causes the milling cutter to perform one or more cutting actions to create one or more slots forming at least a portion of the pattern in an outer conductor of the coaxial cable.

Abstract: A coaxial cable has two concentric conducting tubes, each tube being made of two layers. Each layer is formed of a higher conductivity material layered onto a base material, which is also conductive. The higher conductivity layer is disposed on the base layer such that there is an edge clearance of base layer that is devoid of the higher conductivity material. As a result, the edges of the base layers can be welded together to form the coaxial cable without the weld interfering with the conductive characteristics of the high conductivity layer. As a result, the structure provides the RF attenuation performance of the high conductivity layer while allowing selection of the base layer based on material cost and ease of manufacture.

Abstract: A radiating cable comprises a core having a center conductor bonded to, centered in, and supported by discs of dielectric material. A sleeve of dielectric material is extruded over the discs and thereby bonded thereto to form a plurality of sealed, coaxial, dielectric chambers. A tubular outer conductor is bonded in concentric relation to the sleeve. In a continuous process, at least one slot is formed in the outer conductor by a cutting operation and an outer jacket is extruded over the outer conductor. In a preferred embodiment, the outer conductor is made of an aluminum tube and two circumferentially equally spaced slots are formed therein by removing between 10 and 35% of the aluminum material. The width of the resulting slots may be configured so that a joint is formed in the slot between the insulating sleeve and the outer jacket, thus obviating the use of adhesive in bonding the outer jacket to the cable.

Abstract: A radiating cable comprises a core having a center conductor bonded to, centered in, and supported by discs of dielectric material. A sleeve of dielectric material is extruded over the discs and thereby bonded thereto to form a plurality of sealed, coaxial, dielectric chambers. A tubular outer conductor is bonded in concentric relation to the sleeve. In a continuous process, at least one slot is formed in the outer conductor by a cutting operation and an outer jacket is extruded over the outer conductor. In a preferred embodiment, the outer conductor is made of an aluminum tube and two circumferentially equally spaced slots are formed therein by removing between 10 and 35% of the aluminum material. The width of the resulting slots may be configured so that a joint is formed in the slot between the insulating sleeve and the outer jacket, thus obviating the use of adhesive in bonding the outer jacket to the cable.