▎ 摘　　要

NOVELTY - The cable has an inner conductor (1). A dielectric layer (2) is sleeved outside the inner conductor. An outer conductor (3) is sleeved outside the dielectric layer. An outer shield layer (4) is sleeved outside the outer conductor, and a sheath (5) arranged outside the outer shield layer set. The inner conductor is arranged coaxially with the outer conductor. The inner conductor is provided with an inner graphene layer (6), and the inner side of the outer conductor is provided with an outer graphene layer (7). The material of the inner graphene layer and the outer graphene layer is normal temperature superconducting graphene. USE - Zero-attenuation RF coaxial cable. ADVANTAGE - The current is concentrated in a zero-resistance normal-state superconducting graphene layer such the loss of electromagnetic energy in the inner and outer conductors is reduced to zero thereby obtaining a zero-attenuation RF coaxial cable. DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of the zero-attenuation RF coaxial cable. Inner conductor (1) Dielectric layer (2) Outer conductor (3) Outer shield layer (4) Sheath (5) Inner graphene layer (6) Outer graphene layer (7)