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Ansoft Designer / Ansys Designer 在线帮助文档：

HFSS and Planar EM Simulators >
Working with Materials >
   Viewing and Modifying Material Attributes >
       Specify Thermal Quadratic Parameters           


Specify Thermal Quadratic Parameters

To specify Thermal quadratic parameters for a material, you must enable the View/Edit Modifier checkbox for the Thermal Modifier checkbox in the View/Edit materials dialog. Selecting Edit rather than None in the Thermal column causes the Specify Thermal Quadratic Parameters dialog to appear.

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• In the Basic Coefficient tab, you can edit fields for the TempRef and units, and fields for C1 and C2 for the following equation:

P(Temp) = Pref[1+ C1(Temp - TempRef) + C2(Temp - TempRef)^2]

where the Pref is defined as the reference relative permittivity.

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• In the Advanced Coefficient Set tab, you can edit fields for lower and upper temperature limits (TL and TU respectively) and select their units from the drop down.

• You can also edit the constant value limit for the thermal modifier values outside the limits. By default, these are automatically calculated. Uncheck the Auto Calculate TML and TMU to specify new values for thermal modifier lower (TML) and thermal modifier upper (TMU).

• Click OK to accept the edits and return to the View/Edit materials dialog.

 



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