{| class="wikitable"
|-
! scope="col"| Icon
! scope="col"| Source Type
! scope="col"| Applications
! scope="col"| Restrictions
|-
| style="width:30px;" | [[File:lumped_src_icon.png]]
| '''[[Glossary of EM.Cube's Excitation Sources#Lumped Source |Lumped Source]]'''
| style="width:300px;" | General-purpose point voltage source
| style="width:250px;" | Associated with a PEC or thin wire line
|-
| style="width:30px;" | [[File:dist_src_icon.png]]
| '''[[Glossary of EM.Cube's Excitation Sources#Distributed Source |Distributed Source]]'''
| style="width:300px;" | General-purpose distributed voltage source
| style="width:250px;" | Associated with a virtual rectangle strip
|-
| style="width:30px;" | [[File:ms_src_icon.png]]
| '''[[Glossary of EM.Cube's Excitation Sources#Microstrip Port |Microstrip Port Source]]'''
| style="width:300px;" | Used for S-parameter computations
| style="width:250px;" | Associated with a PEC rectangle strip
|-
| style="width:30px;" | [[File:cpw_src_icon.png]]
| '''[[Glossary of EM.Cube's Excitation Sources#Coplanar Waveguide (CPW) Port |Coplanar Waveguide (CPW) Port Source]]'''
| style="width:300px;" | Used for S-parameter computations
| style="width:250px;" | Associated with a PEC rectangle strip
|-
| style="width:30px;" | [[File:coax_src_icon.png]]
| '''[[Glossary of EM.Cube's Excitation Sources#Coaxial Port |Coaxial Port Source]]'''
| style="width:300px;" | Used for S-parameter computations
| style="width:250px;" | Associated with a PEC Cylinder
|-
| style="width:30px;" | [[File:wg_src_icon.png]]
| '''[[Glossary of EM.Cube's Excitation Sources#Waveguide Port |Waveguide Port Source]]'''
| style="width:300px;" | Used for S-parameter computations
| style="width:250px;" | Associated with a hollow PEC box
|-
| style="width:30px;" | [[File:plane_wave_icon.png]]
| '''[[Glossary of EM.Cube's Excitation Sources#Plane Wave |Plane Wave Source]]'''
| style="width:300px;" | Used for modeling scattering & computation of reflection/transmission characteristics of periodic surfaces
| style="width:250px;" | Stand-alone source
|-
| style="width:30px;" | [[File:gauss_beam_icon.png]]
| '''[[Glossary of EM.Cube's Excitation Sources#Gaussian Beam |Gaussian Beam Source]]'''
| style="width:300px;" | Used for modeling focused beams