Length of the cable, Outside diameter of inner conductor, Inside diameter of the shield, Dielectric constant of the insulator, The dielectric constant is often quoted as the relative dielectric constant referred to the dielectric constant of free space When the insulator is a mixture of different dielectric materials (e.g., polyethylene foam is a mixture of polyethylene and air), then the term effective dielectric constant is often used. Magnetic permeability of the insulator, Permeability is often quoted as the relative permeability referred to the permeability of free space The relative permeability will almost always be .
Length of the cable, Outside diameter of inner conductor, Inside diameter of the shield, Dielectric constant of the insulator, The dielectric constant is often quoted as the relative dielectric constant referred to the dielectric constant of free space When the insulator is a mixture of different dielectric materials (e.g, polyethylene foam is a mixture of polyethylene and air), then the term effective dielectric constant is often used. Magnetic permeability of the insulator, Permeability is often quoted as the relative permeability referred to the permeability of free space The relative permeability will almost always be .