Instructions: Enter the frequency, center-to-center spacing, and wire diameter. 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 center-to-center spacing units are cm or mm. They are "per foot" if the center-to-center spacing units are inches or mils.
Note: All materials are non-magnetic (i.e. μ = μ0). Dielectric losses are not modeled.