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 drop-down list select the  Dielectric (DI) icon.

The DI card is used for the MoM/MLFMM when using the surface current or volume current methods, or also for the FEM.
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.
Note: The same functionality for defining a dielectric, metallic or impedance sheet is also available in CADFEKO.