▎ 摘　　要

NOVELTY - A high-frequency and low-loss phase-stable coaxial cable, comprising a silver-plated copper conductor, out of the silver-plated copper conductor coated with a graphene coating, orderly wrapped and PTFE microporous PE foaming insulating layer with insulating layer outside the graphene coating. the PTFE micro-porous belt insulating layer is orderly provided with a first shielding layer and a second shielding layer, the outside of the second shielding layer is equipped with a sheath, which is made of silver plating layer of the silver-copper conductor reduces the loss, out of the silver-plated copper conductor coated with a graphite coating to further reduce the loss in the signal transmission process in the existing low-loss radio-frequency cable. higher dielectric constant and greatly reduces the weight of the cable, is made of PE foaming insulating layer, the cable and the transmission rate is faster, the PTFE micro-porous belt lapping insulating layer ensures that this utility model cable insulation and insulating the outer diameter of consistency; through the first shielding layer and the second shielding layer to form double shielding, ensure the shielding performance of the cable.