Specifying Frequency Points with a Linear Step Size
- In the Edit
Sweep dialog box, click Linear
Step in the Type pull-down
list.
- In the Start text box, type the starting frequency of the frequency sweep.
For Fast and Interpolating sweeps, setting the initial value to 0 enables the DC Extrapolation option.
- In the End text box, type the ending frequency of the frequency sweep.
- In the Step Sizebox, type the difference between frequency points.
HFSS will solve the frequency point at each step in the specified frequency range, including the start and stop frequencies. For Discrete sweeps, HFSS always solves the frequencies from highest to lowest.
For example, specifying 10
for the start frequency, 20 for
the stop frequency, and 2.5 for
the step sizefor a Discrete sweep instructs HFSS to compute
a solution for frequencies of 10, 12.5, 15, 17.5, and 20. 
To view a table of the frequencies and count, click
the Preview button. 
If the list of frequencies is longer than the visible display, you can use a scroll bar to view the list to the end of the count.
- For Fast sweeps, select Save Fields if you want to save the calculated 3D field solutions associated with all port modes at the chosen frequencies.
For Discrete sweeps, select Save Fields (All Frequencies) if you want to save the calculated 3D field solutions associated with all port modes at the chosen frequencies.
If want to save the fields for just one or a
few Discrete sweep frequencies, create a single point sweep for that
frequency.
This single point sweep has a Save Fields
column with a check box for each single point frequency you define. You
can select the Save Fields check
box for the desired frequency, or click the Save Fields (All Frequencies)
check box to check or uncheck all frequencies.