─ 2.4. Meshing Parameters
The most of parameters are set-up by default within this section. Most interesting ones for this kind of problems are:
- Divisions per wavelength. Increase them for obtaining denser meshes or reduce them for having fewer unknowns. 10 divisions are large enough for problems such as the considered one, and less than 5 divisions is not recommended as it may be detrimental to the Method of Moments formulation accuracy.
- Mesh Mode. Modify it for frequency sweeps, and then you can use a mesh generated for the same frequency for all the analysis frequencies, or generating multiple meshes that are assigned to the closest analysis frequency.
- Advanced Settings – Multilevel Meshing Mode. Disable this option when the expected mesh density is not very large for the input surfaces, i.e., for meshing problems electrically small. For large cases where the input geometry is analogous to a mesh, such as periodical structures or FSS elements, the Multilevel Mode may be also disabled. It is recommended to use the multilevel mode when a large number of elements is expected in any of the input surfaces. You can also specify the frequency for generating the mesh in the first level, and this mesh will be remeshed up to the final desired frequency.
Use the command area –all to get information about the total area to be meshed.
Click on Meshing -> Create Mesh option on the menu bar. To use the same mesh for all the frequency sweep, select the Frequency Mesh Mode and specify the upper frequency of the range, 0.9 GHz. Select the available number of Processors, and then launch the meshing process by clicking on Mesh button.
After the end of the meshing process, the meshes may be visualized by clicking on Meshing - Visualize Existing Mesh and select the mesh in any frequency folder within the desired step folder. Then, you can verify that the mesh show the electrical continuity between the helix filaments and the box, as shown in next figure.
Generated mesh (step 0)
Generated mesh (step 3)
So, example case is now defined. Click on Calculate -> Execute menu and launch the simulation with the available processors. Launch the simulation by clicking on Calculate button.