Creating a Mesh (Voxels)

Discretisise the model into voxels.

To create a voxel mesh, the finite difference time domain (FDTD) solver must be activated.

Enable the FDTD solver.

  1. On the Solve/Run tab, in the Solution settings group, click the  Solver settings icon. Click the FDTD tab and under Time domain solver, select the Activate the finite difference time domain (FDTD) solver check box.
  2. Open the Create mesh dialog using one of the following workflows:
    • On the Mesh tab, in the Meshing group, click the  Create mesh icon.
    • Press Ctrl+M to use the keyboard shortcut.


    Figure 1. The Create mesh dialog (Options tab).
  3. Specify the mesh size.
    • To create a mesh using automatic mesh sizes, in the Mesh size field, from the drop-down list select Coarse, Standard or Fine.
    • To create a mesh with a custom mesh size, in the Mesh size field, from the drop-down list select Custom. In the Voxel size field, specify the length to be used for the voxel width, depth and height.

  4. Specify the global wire radius.
    • To specify a wire radius, clear the Use intrinsic wire radius check box and in Wire radius field, enter a value for the global wire radius.
    • To allow the Solver to determine the wire representation, select the Use intrinsic wire radius check box.
      Note: This option can improve the FDTD convergence.
  5. Click Mesh to mesh the model and to close the dialog.