My simulation is looking at the saturation of a ferrite rod by pulsed magnetic field. The magnetic field is produced by the current flowing through a helical winding. I have simulated the winding as a PEC structure.

The difficulty I have is how to apply the current pulse. Ideally I would apply a voltage pulse to the PEC conductor which, in combination with the return conductor forms a co-axial transmission line - as such, a current determined by the impedance of the co-axial line should flow, producing the desired magnetic field. I can do all these things in the high frequency solver, however the material model does not include the BH properties of the ferrite in the high frequency solver. It appear the full material properties are only available in the PiC solver. Is there a way to apply pulsed voltages/currents in the PiC solver?

The ferrite I have defined is a well-known material 3R1, I have its properties from its material data sheet and I can edit the material properties in CST to include both the BH curve and the electric and magnetic dispersion