Dielectric Surface Impedance Approximation

This option allows a dielectric region to be solved with the dielectric surface impedance approximation.

Figure 1. The SK - Add a skin effect (finite conductivity) dialog.
Note: The surface impedance is calculated from the material properties defined at the DI card.


Material label
Label of the material (as specified in the DI card) which will be used for the calculation of the dielectric surface impedance.

The following dielectric surface impedance expression will be used:

(1) Z s = μ 0 ϵ 0 ε r j σ ω
where the relative permittivity ε r and conductivity σ are defined at a specific angular frequency ω=2πf .