| style="width:250px;" | General-purpose point voltage source
| style="width:250px;" | Associated with a PEC or thin wire line
| style="width:150px200px;" | [[EM.Tempo]]
|-
| Distributed Source
| style="width:250px;" | General-purpose distributed voltage source
| style="width:250px;" | Associated with a virtual rectangle strip
| style="width:150px200px;" | [[EM.Tempo]]
|-
| Microstrip Port Source
| style="width:250px;" | Used for S-parameter computations
| style="width:250px;" | Associated with a PEC rectangle strip
| style="width:150px200px;" | [[EM.Tempo]]
|-
| CPW Port Source
| style="width:250px;" | Used for S-parameter computations
| style="width:250px;" | Associated with a PEC rectangle strip
| style="width:150px200px;" | [[EM.Tempo]]
|-
| Coaxial Port Source
| style="width:250px;" | Used for S-parameter computations
| style="width:250px;" | Associated with a PEC Cylinder
| style="width:150px200px;" | [[EM.Tempo]]
|-
| Waveguide Source
| style="width:250px;" | Used for S-parameter computations
| style="width:250px;" | Associated with a hollow PEC box
| style="width:150px200px;" | [[EM.Tempo]]
|-
| Wire Gap Circuit Source
| style="width:250px;" | General-purpose point voltage source
| style="width:250px;" | Associated with a PEC or thin wire line
| style="width:150px200px;" | [[EM.Libera]]
|-
| Strip Gap Circuit Source
| style="width:250px;" | General-purpose point voltage source
| style="width:250px;" | Associated with a PEC rectangle strip
| style="width:150px200px;" | [[EM.Picasso]], [[EM.Libera]]
|-
| Probe Gap Circuit Source
| style="width:250px;" | Used for modeling short coaxial probes
| style="width:250px;" | Associated with a PEC embedded via
| style="width:150px200px;" | [[EM.Picasso]]
|-
| Scattering Wave Port Source
| style="width:250px;" | Used for S-parameter computations
| style="width:250px;" | Associated with a PEC rectangle strip
| style="width:150px200px;" | [[EM.Picasso]]
|-
| Hertzian Dipole Source
| style="width:250px;" | Used for scattering computations
| style="width:250px;" | Stand-alone source
| style="width:150px200px;" | [[EM.Tempo]], [[EM.Illumina]], [[EM.Picasso]], [[EM.Libera]]
|-
| Gaussian Beam Source
| style="width:250px;" | Used for modeling focused beams
| style="width:250px;" | Stand-alone source
| style="width:150px200px;" | [[EM.Tempo]]
|-
| Huygens Source
| style="width:250px;" | Used as a distributed equivalent
| style="width:250px;" | Imported from a Huygens data file
| style="width:150px200px;" | [[EM.Illumina]], [[EM.Picasso]], [[EM.Libera]]
|-
| Transmitter Set
| style="width:250px;" | Used as a point source with an imported radiation pattern
| style="width:250px;" | Associated with a point or point array
| style="width:150px200px;" | [[EM.Terrano]]
|-
| Fixed-Potential PEC
| style="width:250px;" | Used as a distributed DC voltage source
| style="width:250px;" | Requires drawing geometric objects
| style="width:150px200px;" | [[EM.Ferma]]
|-
| Volume Charge
| style="width:250px;" | Used as a distributed eelctric charge source
| style="width:250px;" | Requires drawing geometric objects
| style="width:150px200px;" | [[EM.Ferma]]
|-
| Wire Current
| style="width:250px;" | Used as a linear filament current source
| style="width:250px;" | Requires drawing geometric objects
| style="width:150px200px;" | [[EM.Ferma]]
|-
| Volume Current
| style="width:250px;" | Used as a distributed elctric current source
| style="width:250px;" | Requires drawing a line or polyline
| style="width:150px200px;" | [[EM.Ferma]]
|-
| Permanent Magnet
| style="width:250px;" | Used as a distributed magnetization source
| style="width:250px;" | Requires drawing geometric objects
| style="width:150px200px;" | [[EM.Ferma]]
|}