Coaxial cables are a common type of communication cable that use concentric layers of insulating material and electrical conductors to carry signals. This helps to eliminate noise and other sources of interference. The center conductor is typically a thin conducting wire, while the outer shield layer is usually made of metal foil or braided copper or aluminum mesh. The entire assembly is then wrapped in an insulating jacket. The outer metal shield layer is usually grounded in connectors at both ends.
The outer jacket of a coaxial cable surrounds the center conductor, which is made from copper or copper clad steel. The inner layer is made of a Teflon or plastic coating that helps to prevent electromagnetic interference. Another layer is an outer polymer casing called the protective plastic layer. These protective layers help to prevent damage to the inner layers of the cable.
Coaxial cables are a type of broadband transmission cable with high bandwidth and low loss. They can be used in networks to connect televisions to cable TV services, as well as for broadband cable Internet connections. Because of its high transmission capacity and low permeability, coaxial cables can stretch transmission lines and can carry voice signals of a higher quality than twisted-pair cables.