DI Card
This card can be used to define the frequency dependent or independent material characteristics of a dielectric medium, metallic medium or an impedance sheet.
In the Home tab, in the Define group, click
the Media icon. From
the ドロップダウンリスト select the
Dielectric (DI) icon.

Figure 1. The DI - Set medium properties dialog.
Parameters:
- Medium label
- Label of the material to be defined.
- Define dielectric medium
- Define a dielectric medium by specifying a wideband model or loading points from a file and using linear interpolation. The following wideband models are available: Constant (Frequency independent), Debye relaxation, Cole-Cole, Havriliak-Negami and Djordjevic-Sarkar (Wideband Debye).
- Define metallic medium
- Define a metallic medium by specifying the frequency independent parameters or loading points from a file.
- Define impedance sheet
- Define an impedance sheet by specifying the frequency independent real/imaginary part of the impedance or loading points from a file.
- Define anisotropic medium
- Define an anisotropic medium by means of specifying either the Full tensor, Diagonal tensor, Complex tensor or Polder tensor (ferrites).
- Define characterised surface medium
- Define a characterised surface medium by loading the transmission and reflection coefficients from a .tr file.(as specified in the DA card)
- Source
- Define the medium by means of a wideband model or loading points from a file.