Ports are the interfaces of the system through which electromagnetic fields propagate into or away from the system. These ports can be used either as sources or as sinks depending on your requirements. Ansys HFSS in Ansys Electronics Desktop (AEDT) has various options to generate incident fields that interact with a structure to produce the total fields on the computational need. Some of these excitations offered by Ansys HFSS are wave port, lumped port, and Floquet port. This course explains these port types briefly and serves as a guide for selecting the appropriate port type for your needs.