Transmission Line Parameters of a Coaxial Cable

Instructions: Enter the frequency, inner conductor radius and outer conductor radius. If you want to specify a conductor other than copper, choose "custom" and specify the conductivity of the conductor material. If you want to specify a dielectric other than air, choose one of the other optional materials or choose "custom" and specify the relative permittivity of the dielectric. Click the "Calculate" button to show the calculated transmission line parameters. Per-unit-length parameters are "per meter" if the inner conductor units are cm or mm. They are "per foot" if the inner conductor units are inches or mils.

Note: All materials are non-magnetic (i.e. μ = μ₀). Dielectric losses are not modeled. Low-frequency resistance calculations do not include the resistance of the outer conductor, which is both small and a function of the thickness. High-frequency resistance calculations include the resistance of both conductors.