| style="width:250px;" | Used for S-parameter computations
| style="width:250px;" | Associated with a hollow PEC box
| style="width:200px;" | [[EM.Tempo]]
|-
| Wire Current Source
| style="width:250px;" | General-purpose current source
| style="width:250px;" | Stand-alone source
| style="width:200px;" | [[EM.Tempo]]
|-
| style="width:250px;" | General-purpose short filament current source
| style="width:250px;" | Stand-alone source
| style="width:200px;" | [[EM.Tempo]], [[EM.PicassoTerrano]], [[EM.LiberaPicasso]], [[EM.IlluminaLibera]], [[EM.TerranoIllumina]]
|-
| Plane Wave Source
| style="width:250px;" | Used as a distributed equivalent
| style="width:250px;" | Imported from a Huygens data file
| style="width:200px;" | [[EM.Tempo]], [[EM.Terrano]], [[EM.Picasso]], [[EM.Libera]], [[EM.Illumina]]
|-
| Point 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
|-
| Volume Charge
| style="width:250px;" | Used as a distributed eelctric electric charge source
| style="width:250px;" | Requires drawing geometric objects
| style="width:200px;" | [[EM.Ferma]]
| Permanent Magnet
| style="width:250px;" | Used as a distributed magnetization source
| style="width:250px;" | Requires drawing geometric objects
| style="width:200px;" | [[EM.Ferma]]
|-
| Fixed-Temperature PTC
| style="width:250px;" | Used as an isothermal surface heat source for thermal simulation
| style="width:250px;" | Requires drawing geometric objects
| style="width:200px;" | [[EM.Ferma]]
|-
| Volume Heat Source
| style="width:250px;" | Used as a distributed volume heat source for thermal simulation
| style="width:250px;" | Requires drawing geometric objects
| style="width:200px;" | [[EM.Ferma]]
| style="width:40px;" | [[image:fdtd-ico.png | link=[[EM.Tempo]]]]
| [[EM.Tempo]]
| style="width:350px;" | Lumpedsource, distributedsource, microstrip, COWCPW, coaxial and waveguide port sources, Hertzian dipole, wire current source, plane wave, Gaussian beam, Huygens source, arbitrary waveform
| style="width:250px;" | Resistor, capacitor, inductor and nonlinear diode
|-
| style="width:40px;" | [[image:prop-ico.png | link=[[EM.Terrano]]]]
| [[EM.Terrano]]
| style="width:350px;" | TransmittersPoint transmitter set, Hertzian dipolesdipole, Huygens source
| style="width:250px;" | N/A
|-
| style="width:40px;" | [[image:static-ico.png | link=[[EM.Ferma]]]]
| [[EM.Ferma]]
| style="width:270px;" | Volume charge, volume current, wire current and , permanent magnet, volume heat source
| style="width:250px;" | N/A
|-