| style="width:250px;" | Requires a plane wave source
|-
| style="width:30px;" | [[File:port_icon.png]]
| style="width:150px;" | '''[[Glossary of EM.Cube's Simulation Observables#Port Definition |Port Characteristics]]'''
| style="width:150px;" | '''[[Glossary of EM.Cube's Simulation Observables#Port Definition |Port Definition]]'''
| style="width:250px;" | Requires one of these source types: lumped, distributed, microstrip, CPW, coaxial or waveguide port
|-
| style="width:30px;" | [[File:port_iconperiod_icon.png]]
| style="width:150px;" | '''[[Glossary of EM.Cube's Simulation Observables#Periodic Characteristics |Periodic Characteristics]]'''
| style="width:150px;" | No observable required