724results about "Coaxial cables/analogue cables" patented technology

A cable system is provided which can accomodate electrical and optical cabling. The conductors of the system employ a layer which is impedance-matched to space, decreasing their cross-section to electromagnetic interference. The conductors of the system also employ a layer which symmetrizes electromagnetic interference signals, reducing the effect of interference and crosstalk on the signals carried by the conductors. The system also includes a node interface device for connection to a global electrical and fiber network. The node interface device connects to a user interface device through the cable.

A coupling loop or antenna is provided that can be used with a system that determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. The coupling loop includes multiple loops. Preferably two tuned loops are used for transmitting the energizing signal to the sensor and an un-tuned loop is used for receiving the sensor signal from the sensor. Orientation features on the housing for the coupling loop and the sensor are provided to assist in positioning the coupling loop relative to the sensor to maximize the coupling between the sensor signal and the coupling loop.

The present disclosure relates to a manufacturing method of a graphene fiber, a graphene fiber manufactured by the same method, and use thereof. The graphene fiber formed by using graphenes of linear pattern can be applied to various fields such as an electric wire and coaxial cable.

A high speed video cable carries signals according to the High-Definition Multimedia Interface (HDMI) or DisplayPort standards, and includes a raw cable and may include a boost device. The raw cable includes coaxial lines of a characteristic cable impedance higher than the impedance implied in the standards. The correct impedance is observed at the sending end by shunt resistors mounted in the first cable connector. The resultant loss of signal may be made up with the boost device mounted in the connector at the other end of the cable in the case of a long cable. Increasing the cable impedance reduces the inherent loss of the raw cable thus permitting the use of low cost material such as tinned wires. Similar advantages are obtained regardless whether Shielded Twisted Pairs (STP) or coaxial lines are used.

An electromagnetic interference (EMI) shielding cage for an electronic module is comprised an electrically-conductive bottom, an electrically-conductive rear panel electrically coupled to said bottom, an electrically-conductive, elongated cover electrically coupled to said bottom and first and second side walls that are electrically and mechanically coupled to said bottom, said rear panel and said elongated cover. Numerous ground lugs, electrically coupled to at least one of: said bottom; rear panel; and first and second side walls provide an electrical pathway for EMI signals to a reference potential. An electrically-conductive, compressible gasket encircling the bottom, top and side walls provides an electrical connection to a front panel, providing additional EMI suppression. Gasket engagement tabs in the top and bottom provide electrical connection between the gasket and panels.

A coupling loop or antenna is provided that can be used with a system that determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. The coupling loop includes multiple loops. Preferably two tuned loops are used for transmitting the energizing signal to the sensor and an un-tuned loop is used for receiving the sensor signal from the sensor. Orientation features on the housing for the coupling loop and the sensor are provided to assist in positioning the coupling loop relative to the sensor to maximize the coupling between the sensor signal and the coupling loop.

A differential signaling cable according to the present invention comprises: a pair of signal conductors provided in parallel; an insulator which covers the periphery of the pair of signal conductors in a batch; and a shield conductor provided on the outer periphery of the insulator, in which an interval between the pair of signal conductors is specified so that even-mode impedance becomes 1.5 to 1.9 times odd-mode impedance.

In a miniature x-ray tube, which may be on the order of approximately 1 mm in diameter or even less, a high voltage cable is provided in various embodiments for conducting current to the cathode of the x-ray tube and for conducting high voltage to the cathode and anode of the tube. In various embodiments of the cable, two conductors occupy a center region of the cable, packed as closely together as possible, in various shapes that are compact and present as smooth as possible an external shape for maximizing dielectric properties against the exterior high voltage ground, surrounding and generally concentric with the inner conductors. The inner conductors, which carry high voltage in opposition to the outer ground, can be in opposed D shapes, coaxial, two flattened conductors side by side, or simply a pair of cylindrical wires positioned as closely as possible. The space between the inner conductors and the outer ground can be occupied by a glass insulator, polymer, successive layers of polymers and adhesive, air, gas, vacuum or other dielectrics. A partially conductive region can surround the inner conductors.

The object of the invention is to provide an extra-fine copper alloy wire, an extra-fine copper alloy twisted wire, an extra-fine insulated wire, a coaxial cable having high intensity, low resistance and high heat tolerance, their manufacturing method and a multicore cable thereof. The extra-fine copper alloy wire has 1 to 3 weight % of silver in the copper, a wire diameter less than 0.025 mm, and a tensile strength of more than 850 MPa, an electrical conductivity of more than 85% IACS after heat treatment; the coaxial cable (20A) is configured that, an inner conductor is formed by an extra-fine copper alloy twisted wire (3) twisted from seven extra-fine copper alloy wires (1), the inner conductor is then peripherally envelopped with a solid insulator (5a) to form an extra-fine insulated wire (10), a plurality of conductor wires (13) are winding in a screw shape on the periphery of the extra-fine insulated wire along a length direction of the extra-fine insulated wire to form an outer conductor (15), thereafter, the outer conductor is envenlopped with a protection layer (17).

The present invention relates to a coaxial cable having a flat portion, so that the cable can be used, for example, as a jumper cable that passes through a window sill or a door. Because the cable is flat, it can easily pass through a crack in the door or window without requiring holes to be dilled into the building structure. The flat portion of the cable contains a central conductor that is sequentially surrounded by a substantially flat dielectric, an outer conductor, and a jacket.

A wire cable assembly capable of transmitting signals at speeds of 5 Gigabits per second over a single pair or conductors. The cable has a characteristic impedance of 95 Ohms and can support transmission data according to either USB 3.0 or HDMI 1.3 performance specifications. The wire cable includes a pair of conductors, a shield surrounding the conductors, and a dielectric structure configured to maintain a first predetermined spacing between the conductors and a second predetermined spacing between said the conductors said shield. The shield includes an inner shield conductor enclosing the dielectric structure, a ground conductor external to the inner shield conductor, extending generally parallel to the pair of conductors, an outer shield conductor enclosing the inner shield conductor and the ground conductor.

A wire harness using a coaxial cable, in which a ground bar and the shield of the coaxial cable are connected at a connection section in an environmentally friendly process and in a manner providing the harness with good electric characteristics. The ground bar (10) is made of a material having a lower melting point than the shield (16). For example, the ground bar (10) is made of brass or aluminum having a lower melting point than copper that forms the shield (16). The ground bar (10) and the shield (16) are connected together by applying a laser beam to the ground bar (10) and laser bonding them together by spots (30). Since the shield (16) has a higher melting point than the ground bar (10), melting of the shield (16) is suppressed because of the use of the laser bonding and, further, thermal damage to an inner dielectric layer under the shield (16) is suppressed. The environment is less affected because solder is not used.

In the present invention, the solid contacted ISE and the solid contacted reference are based on a conductive porous network with a solid contact and membrane disposed thereon. The porous networks are not only mechanically stable, but also provide pore structure for the solid contact and membrane to intercalate, which enhances the life time and stability of the sensors. The invention further incorporates a unique fluidic fitting sensor and sealing mechanism so that measurements can be taken at high pressures. The fitting design has many benefits, such as low cost and disposability, which allows them to be mass manufactured. These sensors can be produced for detection of many different kinds of ions by applying different types of ion selective membranes, including polyvinylchloride (PVC) based ion-selective membranes and fluorous matrixes based ion-selective membranes.

There are provided a shielded cable comprising a core wire for carrying an electrical signal, and a shield provided around the circumference of the core wire and connected to the core wire via a drive circuit, wherein the drive circuit has a band limiting circuit which decreases an output voltage in a predetermined frequency band; and an apparatus which acquires a bioelectrical impedance value or biological composition data by using the shield cable.

FEP compositions are provided that provide foam insulation in coaxial cable that surpasses the return loss obtained when PFA is used to make the foamed insulation, one composition comprising a blend of tetrafluoroethylene / hexafluoropropylene copolymers, one of said copolymers exhibiting a strip force of at least about 3 lbf (13.3 N) and another of said copolymers exhibiting a strip force no greater than about 2.5 lbf (11.1 N), said blend exhibiting a strip force of at least about 3 lbf (13.3 N), each said strip force being the force necessary to break adhesion between conductor and said one of said copolymers, said another of said copolymers, and said blend, respectively, and another composition comprising tetrafluoroethylene / hexafluoropropylene copolymer having an MFR of no greater than about 16 g / 10 min and containing —CF3 end groups and an effective amount of wire affinity end groups to exhibit a strip force of at least about 3 lbf (13.3 N), said strip force being the force necessary to break adhesion between conductor and said copolymer, the coaxial cable exhibiting an average return loss of no greater than about −26 dB at 800 MHz to 3 GHz and having a void content of about 20 to 65% and (b) forming an outer conductor over said foamed insulation.

A twinax cable includes at least a pair of core wires, each of which includes a conductor and an insulator covering an outer periphery of the conductor. The insulator includes an inner insulator covering the outer periphery of the conductor and an outer insulator covering an outer periphery of the inner insulator. The inner insulator is formed by a non-colored compressed insulator. The outer insulator is formed by a colored compressed insulator. A thickness of the outer insulator is formed thinner than a thickness of the inner insulator. The outer insulators of the pair of core wires are formed to have hues that are set respectively differently.

Discussed herein are multi-member cables which are comprised of two or more components (including component cables and non-cable components) held together by at least one adhesive element placed between the components, and methods for manufacturing such cables. Multi-member cables which are compromised of jacketed cables whose jackets are adhered together without the use of an adhesive element, such as by co-forming the jackets, and methods for manufacturing such cables are also discussed. Generally, the components will be separated from the multi-member cable by an installer, although other methods may also be used.

The invention relates to a photoelectric combined composite cable and a manufacturing process of the photoelectric combined composite cable. The manufacturing process is characterized in that a reinforcement core is arranged, two optical cable units, three cable units, two coaxial cable units and a pair twist unit are twisted into a cable core around the reinforcement core with the reinforcement core as the center, and a wrapping tape layer, a main metal shielding layer, a lining layer, an armor layer and an outer sheath layer are sequentially arranged outside the cable core from inside to outside. The advantages of optical fiber communication and the unique function of electric signal transmission are reasonably and organically combined, the related units are independent and do not interfere with one another in the working process, and the function of integrating power transmission, signal transmission and equipment control is realized. The photoelectric combined composite cable is small in outer diameter, light in weight, good in bending performance, electric performance and optical performance, favorable for transportation and installation and suitable for electric communication and control connecting lines in many fields and on many occasions.

FEP compositions are provided that provide foam insulation in coaxial cable that surpasses the return loss obtained when PFA is used to make the foamed insulation, one composition comprising a blend of tetrafluoroethylene / hexafluoropropylene copolymers, one of said copolymers exhibiting a strip force of at least about 3 lbf (13.3 N) and another of said copolymers exhibiting a strip force no greater than about 2.5 lbf (11.1 N), said blend exhibiting a strip force of at least about 3 lbf (13.3 N), each said strip force being the force necessary to break adhesion between conductor and said one of said copolymers, said another of said copolymers, and said blend, respectively, and another composition comprising tetrafluoroethylene / hexafluoropropylene copolymer having an MFR of no greater than about 16 g / 10 min and containing —CF3 end groups and an effective amount of wire affinity end groups to exhibit a strip force of at least about 3 lbf (13.3 N), said strip force being the force necessary to break adhesion between conductor and said copolymer, the coaxial cable exhibiting an average return loss of no greater than about −26 dB at 800 MHz to 3 GHz and having a void content of about 20 to 65% and (b) forming an outer conductor over said foamed insulation.

The invention relates to a broadband radial pattern leaky coaxial cable used for subway and a manufacturing method thereof, and the leaky coaxial cable has the double functions of transmission line of information and duplexer. The structure of the leaky coaxial cable consists of an inner conductor, an insulation layer, an outer conductor and a jacket, wherein, the inner conductor is externally covered with the insulation layer which is externally covered with the outer conductor that is externally sheathed with the jacket, and the insulation layer that covers on the surface of the inner conductor adopts nitrogen or carbon dioxide physical foam to form a foamed polyethylene insulation layer; cambered slotted holes are opened on a clutch gold belt of the outer conductor covered outside the insulation layer. The manufacturing method comprises the steps: (1) a spiral wrinkle inner conductor is manufactured by longitudinal covering welding and embossing by using a copper strip; (2) the nitrogen or the carbon dioxide are adopted to be injected into the smelted polyvinyl plastics, and then the physical foamed polyethylene insulation layer is formed on the surface of the inner conductor by extrusion and cladding; (3) the slotted holes broken out by the clutch gold belt of the outer conductor are the cambered slotted holes; (4) the clutch gold belt of the outer conductor is covered on the insulation layer longitudinally, and the surface of the clutch gold belt of the outer conductor is crowded and covered with the jacket.

The invention relates to a double-shielded mineral-insulated cable which is mainly applied to the fields of high-frequency signal transmission in occasions with high ambient temperature and high radiation, such as the communication fields of metallurgy, medical treatment, aerospace, military and the like. The double-shielded mineral-insulated cable comprises an inner conductor, an insulating medium, an outer conductor, an insulating medium and a protective sleeve in sequence from inside to outside, and is characterized in that the insulating medium is magnesium oxide, aluminum oxide or silicondioxide. Compared with the existing double-shielded cable, the double-shielded mineral-insulated cable has the advantages of longer service life and wider use range; in addition, the double-shieldedmineral-insulated cable has excellent performance, has little interference to transmitted signals and can be used for the communication fields of metallurgy, medical treatment, aerospace, military andthe like.

A pair of second intervening members configured to hold a transverse cross-section of a first intervening member in a circular shape is disposed inside the first intervening member together with a first cable assembly. An overlap portion of each of differential signal transmission cables that form the first cable assembly and a second cable assembly is oriented toward a second shielding tape conductor.