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HFSS15: Legacy HFSS Project Translation
HFSS 12 translates all HFSS 10 data. It does not open projects created in Ansoft HFSS version 8.5 or earlier. HFSS 10 can be used to translate earlier projects. Virtually all of the project’s pre-processing data is translated. Note that solution results and Optimetrics setup data are unavailable; however, the nominal model created for Optimetrics is translated. Following are additional notes about the translation of various legacy project information.
Model Geometry | The translated geometry’s construction history is unavailable; therefore the original object properties you defined cannot be modified in the Properties window. However, you can modify the geometry using version 10’s modeling features. For units unavailable in version 10, such as yards, the nearest available units are used; the model will be scaled slightly to fit the new units. View visualization settings apply to the saved design. If these have been changed from the default (15 deg), this affects the memory and CPU required to open the project. |
Excitations and Boundaries | Port impedance and calibration lines become integration lines in version 10. If the legacy project contained both impedance and calibration lines, impedance lines are translated and calibration lines are ignored. If the project contained both impedance and terminal lines, both are translated. The impedance lines will be ignored for Driven Terminal solutions and terminal lines will be ignored if the project is changed to a Driven Modal solution. Boundaries assigned to named interface selections or rectangle selections are not translated. For a boundary assigned to the intersection of two faces, HFSS 10 will create a new 2D sheet object from the intersecting area and assign the boundary to that object. |
Materials | Functions defined in legacy projects become project variables in version 10; therefore, functional material properties are translated. Perfect conductors become regular materials with conductivity values of of 1E30. Object coordinate systems are created for objects assigned anisotropic materials in legacy projects. The coordinate system is defined at the same origin as the global coordinate system, with the same orientation defined when the anisotropic material was assigned to the object in the legacy project. Nonlinear materials from legacy projects that have magnetic saturation values greater than zero are treated as ferrite materials in version 10. Their properties are not modified. |
Mesh Operations | Mesh refinement operations performed on arbitrary boxes in legacy projects are ignored. Area- and volume-based mesh operations are translated as length-based mesh operations in version 10 by taking their square roots and cube roots, respectively. |
Optimetrics | Setup information, including design variables, is not supported; however, the nominal model can be translated. Parameterizing a translated model is limited because geometry construction history is unavailable. |
Solution Types | Driven solver projects that contained terminal lines are translated to Driven Terminal solution types in version 10. |
Solution Setup | Impedance-only and emissions-only solutions are not supported in version 10; therefore these selections in legacy projects are ignored. The design’s initial mesh is used for the version 10 solution. Current meshes are not translated. Saving dominant-only or higher-order-only mode S-matrix entries are not supported in version 10; therefore these mode selections in legacy projects are ignored. For frequency sweeps, the Number of Steps value specified in the legacy project is converted to the corresponding Step Size value in version 10. The total number of requested adaptive passes in the legacy project becomes the Maximum Number of Passes value in version 10. For example, if you request 3 adaptive passes, solve them, and then request 2 adaptive passes, 5 will be the value specified for the Maximum Number of Passes in version 10. |
Solutions | Solution data is not translated; therefore, you must solve legacy HFSS projects again in version 10. |
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