Hi Elad,
You don't need Workbench simulation. Within AEDT, HFSS solves coupled Maxwell's equation where variations of electric field leads to magnetic field and vice versa. Within HFSS, you can simulate wave propagation and scattering from objects with full wave analysis. You can also plot field and current quantities at any desired location. HFSS comes with online help as well as Open Examples where you can get a jumpstart. Also, you may search for some Ansys How To videos on Youtube using HFSS.
You are navigating away from the AIS Discovery experience