Frequency Domain, RF Adaptive Mesh

) study and study step are used to perform the mesh adaptation for RF, microwave, and millimeter-wave circuit or antenna models based on the computed norm of electric and magnetic fields of a linear or linearized model subjected to harmonic excitation for one or several frequencies. The adaptation is automatically terminated when the absolute value of S-parameter is converged within the range specified.


	This study requires a license for the RF Module. See also the RF Module documentation for more information about RF frequency-domain studies.


	The Include geometric nonlinearity check box and the Results While Solving and Mesh Selection sections are described in Common Study Step Settings. There is also detailed information in the Physics and Variables Selection and Values of Dependent Variables sections.

Study Settings

Specify the frequencies to use for the frequency sweep. Select the unit to use from the list (default: GHz). Type the frequencies in the field using space-separated numbers or the range function.

Select — (the default) or .

When is selected, select a — or (the default) When is selected, edge mesh adaptation is performed on conductive printed traces or slots. For , perfect matched layers are excluded in the mesh adaptation.

In the field, enter a suitable number of mesh adaptation steps (default: 10).

In the field, enter a suitable damping factor (default: 0.1). The damping factor makes the mesh adaptation more robust when there is any sharp resonance. A higher value could turn a sharp peak into a smooth curve of functional and goal-oriented termination expressions.

The check box is selected by default to make sure that elements with linear shape functions are used. They work best for these types of RF adaptive mesh simulations, especially for circuit simulations.