Create the model CST MICROWAVE STUDIO.
Define all solver specific setting that are needed for the high frequency problem type.
Define material properties including thermal properties.
Define all sources for the high frequency problem.
Solve the high frequency problem.
Switch to "Low Frequency" problem type.
Define additional thermal sources.
Solve the thermal problem.
Currently this kind of coupling is available for all HEX solvers.
The grids used for both solver runs need to be the same.