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HFSS and Planar EM Simulators > HFSS Setup: Options TabClick the Options tab of the Add HFSS Solution Setup dialog to access the following settings. Initial Mesh Options: options that define the initial mesh (before adaption). Do Lambda Refinement: Lambda refinement is the process of refining the initial mesh based on the material-dependent wavelength. Lambda Target: the fraction of the wavelength that determines the refined tetrahedra edge length, e.g. if the value is '0.1' then a edge length of 0.1* is used as the refinement target. Use 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; HFSS will refine the mesh until most element lengths are approximately one-third wavelength.
Adaptive Options: Maximum Refinement Per Pass: determines how many tetrahedra are added at each iteration of the adaptive refinement process. The tetrahedra with the highest error will be refined. The value is a percentage. Maximum Refinement: the maximum number of tetrahedra that can be added during an adaptive pass. By default, this unchecked, to that there is no maximum. If you enable the Maximum Refinement, the initial value is 1000000. Minimum Number of Passes: the maximum number of mesh refinement cycles that you would like HFSS to perform. This value is a stopping criterion for the adaptive solution; if the maximum number of passes has been completed, the adaptive analysis stops. If the maximum number of passes has not been completed, the adaptive analysis will continue unless the convergence criteria are reached. Minimum Converged Passes: an adaptive analysis will not stop unless the minimum number of converged passes has been completed. The convergence criteria must be met for at least this number of passes before the adaptive analysis will stop
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