▎ 摘　　要

NOVELTY - The utility model claims a low-noise coaxial cable, comprising a conductor and sequentially layer covered outside the conductor from inside to outside, a semi-conductive layer, a shielding layer and a sheath, the shielding layer is composed of a first shielding layer located in the inner part and a second shielding layer located outside, the first shielding layer is formed by spirally wrapping silver-plated copper flat belt, the second shielding layer is formed by weaving silver-plated round copper wire, The low-noise coaxial cable of the utility model is extruded a layer of graphene semi-conductive layer on the polytetrafluoroethylene of the insulating layer, reducing the noise of the coaxial cable, under the action of bending, vibration, impact, temperature change and other external factors, the pulse signal generated by the cable itself is less than 5mV.