Coaxial Cable is a kind of electric wire and signal transmission line, which is generally made of four layers of materials: the innermost is a conductive copper wire, the outside of the wire is surrounded by a layer of plastic (used as an insulator and a dielectric), and there is a thin layer of mesh on the outside of the insulator. Shape conductor (usually copper or alloy), and then the outermost layer of insulating material is used as the outer skin of the conductor.
