Coaxial Cable is a type of electrical cable consisting of a central conductor, surrounded by a layer of insulation, a metallic shield, and an outer insulating layer. They are known for their excellent shielding properties, which make them less susceptible to signal interference compared to other types of cables. This is widely used for transmitting high-frequency signals, such as those used in cable television, internet access, and data networks. Furthermore, the Coaxial Cable are characterized by their impedance, which is a measure of the opposition to the flow of alternating current.