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Ansoft Designer / Ansys Designer 在线帮助文档：

Schematic Editor >
   N-Ports in Designer >
       Creating a Parametric N-Port Model >
           Simulation Tab

Simulation Tab

The Simulation tab is used to select the simulation options of the NPort.

• Interpolate existing solutions interpolates existing solution data. When Interpolate existing solutions is not selected, Designer simulates or calculates any solution data that is needed.

• Simulate missing solutions asks HFSS or Q3D to simulate, if the solution is not available.

• Clear Solution Cache when clicked will immediately clear the solution cache memory.

• Show available variations queries HFSS and reports what parameter values have been simulated in HFSS. This information may help you to decide whether to solve additional variations in HFSS or to use interpolation when doing co-simulation with Nexxim-HFSS. Though the HFSS project may possess several variables, it may have run simulations only for certain values of those variables. (Each set of variable values defines a variation.)

• Click Interpolation options to open the following dialog:

• Click the down arrow in the Interpolation algorithm field to select an interpolation algorithm option:

Automatic — Linear interpolation is used if a full grid of solutions is present, otherwise Inverse Least Squares with Shadowing and Hyperplanes is used.

Linear — When a full grid of solutions is available, the cube of solutions which surrounds the solution to be interpolated is located. The corners of this cube are linearly averaged to determine the interpolated solution. If a full grid is not available, an error is reported and the interpolation fails.

Inverse Least Squares with Shadowing and Hyperplanes — Least squares interpolation with shadowing and hyperplanes.

Inverse Least Squares with Shadowing, no Hyperplanes — Least squares interpolation with shadowing, but no hyperplanes.

• Interpolate Y matrix uses the Y matrix as the basis for interpolation. When Interpolate Y matrix is not selected, the S matrix is used as the basis. Interpolate Y matrix is selected by default. Circuit particulars determine which basis (S or Y) will yield better results, and it is not possible to decide beforehand which one will work best.

• Only use independent variables during interpolation suppresses the calculation of dependent variable values during interpolation.
Network Data Explorer allows you to view and manipulate network data by opening the Network Data Explorer.

Note

The main difference between Linear interpolation and Inverse Least Squares with Shadowing (ILSS) is as follows:

• Linear only works with a full grid of solutions — ILSS works with arbitrary data.

• Linear only considers nearest data — ILSS considers data that could possibly be distant, although shadowing mitigates this effect.

• Linear is not first-order continuous — ILSS is first-order continuous.

After choosing interpolation settings, click OK to close the Interpolation Options dialog. When the N-port Simulation options have been entered, click OK or select another tab.

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