The present disclosure relates generally to a telecommunications wire including an electrical conductor and a dielectric insulator surrounding the electrical conductor. The dielectric insulator defines a plurality of channels defining void space containing a material having a low dielectric constant such as air. The channels each run along a length of the electrical conductor. The channels are configured to lower an overall dielectric constant of the dielectric insulator while maintaining desirable mechanical properties such as crush resistance.

The present disclosure relates generally to a telecommunications wire including an electrical conductor and a dielectric insulator surrounding the electrical conductor. The dielectric insulator defines a plurality of channels defining void space containing a material having a low dielectric constant such as air. The channels each run along a length of the electrical conductor. The channels are configured to lower an overall dielectric constant of the dielectric insulator while maintaining desirable mechanical properties such as crush resistance.

A cable including a first insulating layer, a twisted pair, a ground structure, and at least one conducting element is provided. The twisted pair is disposed in the first insulating layer and includes two signal wires, wherein the two signal wires are intertwisted to each other. The ground structure is disposed at the first insulating layer. The conducting element includes a main body portion and at least one extending portion. The main body portion is disposed in the twisted pair to be surrounded by the two signal wires. The extending portion is connected to the main body portion and grounded to the ground structure.

The present invention is a signal cable for transmitting the signal between the transmitter and the receiver, providing an electrical connection by a connecting part, wherein said connecting portion comprises a layer of graphene disposed on a polymer layer, characterized in that it comprises two conductors, wherein each conductor includes a connecting portion arranged in a protective insulating layer (3) and the coupling portion takes the form of a tape, in which the graphene layer (1) is disposed between two polymer layers (2).

A differential transmission cable includes a pair of signal lines, an insulation covering the pair of signal lines, and a shielding tape that includes a conductor layer and an insulation layer formed on one surface of the conductor layer and is helically wound around the insulation. The diameter of the signal line is thinner than at least 30 AWG (American Wire Gauge), and differential characteristic impedance is not less than 80 and not more than 120.

An acousto-optic audio signal cable includes an audio wire cluster, a light emitting diode marquee light wire or a light emitting diodes light-emitting light string or an electroluminescent cable, a transparent or light-transmitting insulating layer, and an acousto-optic controller. The light emitting diode marquee light wire and the audio wire cluster, or the light emitting diodes light-emitting light string and the audio wire cluster, or the electroluminescent cable and the audio wire cluster are integrated into a wire cluster. The transparent or light-transmitting insulating layer wraps the integrated wire cluster. The acousto-optic controller includes a sampling amplifier circuit component, an A/D conversion circuit component, a microprocessor, and an output driver coupled in sequence. An input terminal of the sampling amplifier circuit component is coupled to the audio wire cluster. The output driver is coupled to the light emitting diode marquee light wire.

A cable includes: plural wires including plural pairs of differential signal wires, a detection signal wire, at least one auxiliary signal wire, a plurality of low speed signal wires, and two power wires arranged adjacent to the low speed signal wires; and a jacket enclosing the plurality of wires; wherein the differential signal wires, the detection signal wire, and the at least one auxiliary signal wire are arranged at an outer periphery of and enclosing the low speed signal wires and the two power wires, and every two adjacent differential signal wire pairs are separated by one of the detection signal wire and the at least one auxiliary signal wire.

A cable having low values for resistance, inductance, and capacitance. The cable includes a plurality of conductors for each signal or leg, which may be configured as a braid of three subsets of braids of bonded pairs of insulated conductors. The bonded pairs may be twisted or untwisted, in close proximity such that inductance is reduced via magnetic field cancellation. Each leg may be separate and parallel, rather than interwoven or braided together, increasing the distance between the two signals and reducing capacitance. The legs may be positioned close to each other, such that their magnetic fields cancel to further reduce inductance.

A cable having low values for resistance, inductance, and capacitance. The cable includes a plurality of conductors for each signal or leg, which may be configured as a braid of three subsets of braids of bonded pairs of insulated conductors. The bonded pairs may be twisted or untwisted, in close proximity such that inductance is reduced via magnetic field cancellation. Each leg may be separate and parallel, rather than interwoven or braided together, increasing the distance between the two signals and reducing capacitance. The legs may be positioned close to each other, such that their magnetic fields cancel to further reduce inductance.

An embodiment vibration dampening device includes a stack of permanent magnets having a plurality of cross-sectional areas, wherein the permanent magnets are electrically coupled in series with each other. The device further includes an insulating sheath disposed around the stack of permanent magnets, and a visco-elastic polymer disposed within the sheath and around the stack of permanent magnets.