From the sweep window, select Generate Surface Current and the Electronics Desktop saves the surface current data at every discrete frequency point. This allows you to plot the current and compute near- and far-field quantities at more than one frequency point. Otherwise, the surface current data is saved at the adaptive frequency point of the last adaptive pass, if specified.
Note:
If Generate Surface Current is not selected and an adaptive solution is not being performed, surface current data is not saved.
Keep the following things in mind when generating the surface current:
- Gain, axial ratio, far fields, and near fields require the surface current. If you select not to save the surface current and do not perform an adaptive solution, commands associated with these values are not available.
- The Generate Surface Current option is only available if you select Discrete as the type of frequency sweep. For a Fast Interpolating frequency sweep, the surface current data is only saved at the adaptive frequency. Note that if you are simulating over many frequency points, it is recommended that you do not select Generate Surface Current, since the resulting surface current file may become very large.
- For problems with plane waves (HFSS 3D Layout only), the Generate Surface Current option is always selected.