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HFSS15: Setting the Minimum Frequency
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For Eigenmode solution types.
For every Eigenmode solution setup, specify the minimum frequency at which to search for eigenmodes. HFSS searches for the user-specified number of modes with a higher resonant frequency than the Minimum Frequency value.
• Under the General tab of the Solution Setup dialog box, type a Minimum Frequency and the frequency units.
• You can set the Minimum frequency as a variable by typing a name in the field and pressing Enter. This displays the Add Variable dialog for you to enter the value and units. Click OK to close the dialog. The variable is listed in the Setup and in the Design Properties.
Warning | Because the minimum frequency is used to normalize some matrices, if the frequency is set too low, HFSS tries to solve a nearly-singular matrix, which may erode the accuracy of the calculations. As a general rule, do not enter a frequency less than 0.01 times the suggested, or default, value for Minimum Frequency. |
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