Model Geometry

• The translated geometry's construction history is unavailable; therefore, the original object properties you defined cannot be modified in the Properties window.
• For units unavailable in the older version, 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

• If the legacy project contained both port impedance and calibration lines, the impedance lines are translated to integration lines, and calibration lines are ignored. If the project contained both impedance and terminal lines, both are translated to integration lines. The impedance lines are ignored for Driven Terminal solutions and terminal lines are 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, a new 2D sheet object is created from the intersecting area and assign the boundary to that object.

Hybrid Regions

• Radiation Boundaries with FEBI become Hybrid Regions assigned as FEBI.

Materials

• Functions defined in legacy projects become project variables; therefore, functional material properties are translated.
• Perfect conductors become regular materials with conductivity values 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. 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 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.

Solution Setup

• Impedance-only and emissions-only solutions are not supported; therefore, these selections in legacy projects are ignored.
• The design's initial mesh is used for the solution. Current meshes are not translated.
• Saving dominant-only or higher-order-only mode S-matrix entries are not supported; 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.
• The total number of requested adaptive passes in the legacy project becomes the Maximum Number of Passes value. 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.

Solutions

• Solution data is not translated; therefore, you must solve legacy projects again.