Using the CFIE For Closed PEC Regions

When solving an enclosed perfectly conducting metallic region using the MoM or MLFMM solution method, the CFIE can be used to improve the iterative solver convergence.

  1. If the model will be solved using the multilevel fast multipole method (MLFMM), activate the MLFMM.
  2. Select the faces of the enclosed volume in the in the 3D view or in the details tree.
  3. In the details tree, from the right-click context menu, select Properties.
  4. On the Modify Face dialog, click the Solution tab.
  5. From the Integral equation drop-down list, select Combined field1.
  6. Click OK to save the face properties and to close the dialog.
1 combined field integral equation (CFIE)