HFSS15: Setting Lambda Refinement

Lambda refinement is the process of refining the initial mesh based on the material-dependent wavelength. It is recommended and selected by default. If you select the Use Current Mesh From option under the Advanced tab, Do Lamda Refinement is deselected. If you make the Specify Use Current Mesh From selection as the Current design, the Do Lamda Refinement fields are disabled. If you make the Specify Use Current Mesh From selection as Other design and Setup the Link, the Do Lamda Refinement fields remain enabled so that you can select it if desired.

To specify the size of target value by which HFSS will refine the mesh:

1. Under the Options tab of the Solution Setup dialog box, select Do Lambda Refinement.

This enables the Target field and the Use free space lambda check box.

2. Enter a value for the wavelength in the Target field or accept the defaults.

The Target defaults depend on the Order of Basis function selections. For example, for Driven solutions and a First Order basis function, the default target is 0.3333, which means that HFSS will refine the mesh until most element lengths are approximately one-third wavelength.

For eigenmode solutions and a First Order basis function, the default target is 0.2

If you change the Order of Basis functions in the Solution Setup dialog, the default changes automatically. Setting the Order of Basis affects the default value of the Lambda Refinement in the Solution setups as follows.

3. If you want the initial mesh to be refined based on the wavelength in free space, select Use free space lambda. Material-dependent lambda refinement will be deactivated.