How to Calculate Analytic Derivatives in ANSYS HFSS

One of the little-known calculations within ANSYS HFSS is called Analytic Derivatives. Normally, if an engineer is interested in design sensitivity, they run several parametric simulations, and create regression curves for the various outputs. These variations are typically run at min/typ/max values of all the relevant parameters, and a full design exploration can consume valuable compute resources. Enter the Derivatives calculation. By using an algorithm during the matrix solution in