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.

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.