System Simulator Options — Ansoft Designer 7.0 在线帮助文档，Ansys Designer 教程

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System Simulator Options

To configure options for the System Simulator, access the System Options dialog by selecting Tools > Options > System Options. If you have just inserted a design, a local version of the dialog corresponding to that design is displayed:

If you have not just inserted a design, a global version of the dialog is displayed:

The following controls are available for both the local and global versions of the System Options dialog:

• Run ERC before creating netlist — Runs electrical rules checking for nets/nodes that are electrically connected but not physically connected. The ERC results display in the message window. The simulation proceeds regardless of the results of ERC.

• Show details for every analysis — Specifies that the Design icon in the Message window will expand to show all messages from the simulation as it runs. The default is not to expand the Design icon unless there are warnings.

• Use circuit S-parameter definition — Controls the definition for port impedances. For System designs, this option should typically be selected. The definition of a “matched port” depends on the application:

— With applications that deal mostly with circuit quantities, including the Nexxim and System simulators, a “matched port” has a characteristic impedance that maximizes the power transfer. This is also called a “conjugate match.”

— With applications that deal mostly with electromagnetic quantities, including HFSS and Planar EM, a “matched port” has a characteristic impedance that maximizes the transfer of the voltage wave. The two definitions differ only by the conjugate of the characteristic impedance of the port. For real port impedances, there is no difference.


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