Specifying Solution Settings > Adding a Frequency Sweep > Specifying the Frequency Points to Solve > Choosing Frequencies for Full-Wave SPICE               

Requirements for Full-Wave SPICE

The Full-Wave Spice requirements are as follows:

1. The design problem type in which the solution data panel is opened must be driven terminal.

2. In the Matrix Data panel, for non-imported data, the view type for the solution data must be "Terminal Data" (not "Modal Data").

3. The data must be interpolating, or it must be discrete.

4. If the data is discrete:

a. It must either be native terminal data, or it must be inferred as terminal. For instance, in a Touchstone file, the comment line "! Terminal data exported" will cause HFSS to interpret the data as terminal, while the comment line "! Modal data exported" will cause HFSS to interpret the data as modal. If HFSS finds neither comment line, it assumes that the data is terminal.

b. At least 20 frequency points must be provided.

c. HFSS must be able to generate an interpolation basis that converged with <= 0.5% error using no more than 100 basis elements.