Surface Impedances are used to account for limited conductivity of surfaces triangles or assign them dielectric properties. Surface type allows directly assign impedance to the related triangles by defined resistance R and reactance X. Ohmic and Skin types are intended to model the surface impedance of metallic triangles using their material and geometric properties. They are specified by the material conductivity, relative permeability, magnetic loss factor and thickness. Dielectric type allows considering triangles as thin dielectric layer and is specified by relative permittivity, dielectric loss factor and thickness assigned to the related surfaces
Dielectrics feature allows consideration of dielectric media using Surface Integral Equations (SIE) approach. Mixed metallic and dielectric geometries, such as closed dielectric bodies (both ideal and lossy) along with metal/wire geometry, planar structures, consisting of dielectric substrate with metallic traces, and so on can be treated.
Environment properties can be assigned either with constant or frequency dependent parameters.