Click or drag to resize

Anisotropic

In EMA3D, anisotropic materials are linear and frequency independent. Anisotropic materials include both electric and magnetic lossy materials characterized by user-supplied entry values in the matrices of the conductivity, the permittivity, the permeability, and the magnetic conductivity tensors. If anisotropic materials overlap, then the last one defined takes precedence.

In the case of coincident or overlapping materials, materials are assigned the following priority:

Material Priority
Instructions
  1. Check to make sure all of the relevant structures in the Structure Tree are checked to make them visible.

  2. Click MaterialsMaterial Image 16 color within the Definitions section under the EMA3D tab in the ribbon.

  3. ClickAnisotropic Tree Image 16 Anisotropic in the drop-down list.

  4. anisotropic 1
  5. In the Properties panel select the ellipsis to the right of Material. A new window will appear. In the pop-up window, under the Local tab, select NewNew Material Image 16 .

  6. anisotropic 2
  7. Double click to select the first definition in the list Anisotropic. Click General to view and change any property values. Select a material property to see its definition. A list of material properties and their definitions is provided at the bottom of this page. The color is in A, R, G, B format and choosing an A between 0 (most transparent) and 255 (opaque) can make the color and mesh semi-transparent. The next section discusses how to change the anisotropic material matrix.

  8. anisotropic 3
  9. Click on the appropriate selection tool (i.e., bodySelect Body Image 16 , surfaceSelect Surface Image 16 , or lineSelect Line Image 16 ) tool in the top left of the model window to restrict the assignment definition.

  10. To assign material properties, either select the geometric entity in the model window or in the Structure Tree.

  11. anisotropic 4
  12. The selected surfaces will be recolored in the model window.

  13. anisotropic 5
  14. To hide the color and revert to the original, more transparent view, click the eye next to Anisotropic under the Definitions node in the Simulation Tree.

  15. anisotropic 6
  16. Repeat the above steps to assign as many materials as desired.

  17. ClickCheck Image 16 to complete the material assignments.

General
Options

Entry

Meaning

Material Libraries

Local anisotropic definition to assign to the geometry.

Name

Name of the material.

General

General Options Summary

Anisotropic material parameters are based on tensor notion as denoted in the matrix below:

anisotropic 7
General Options

Entry

Meaning

Color

Rendering color of the material.

Permittivity (ε)

Material absolute permittivity.

Permeability (μ)

Material absolute permeability.

Electric Conductivity (σₑ)

Material electric conductivity.

Magnetic Conductivity (σₘ)

Material magnetic conductivity.

Metadata
Metadata Options

Entry

Meaning

Part Number

Part number of material (if any).

Company

Company of material (if any).

Category

Category of material (if any).

Abbreviation

Abbreviation of material (if any).

Description

Description of material (if any).

Short Name

Short name description of material (if any).

Long Name

Long name description of material (if any).

Version

Version of material (if any).

See Also

EMA3D – © 2026 EMA, Inc. Unauthorized use, distribution, or duplication is prohibited.