The Frequency-Stationary () study and study step are used to compute the temperature field, at thermal equilibrium, and the electromagnetic field distribution for models created with, for example, the following physics interface and module combinations:

It is a special case of a Stationary study in which the stationary heat transfer equation is solved together with a frequency-domain equation for electromagnetics.

For other interfaces that support the Frequency study, like Solid Mechanics, set the equation form to Stationary in the main node of the interface when they are solved in a Frequency-Stationary study step.