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A short Hertzian dipole is the simplest way of exciting a structure in EM.Illumina. A short dipole source acts like an infinitesimally small ideal current source. To define a short The total radiated power by your dipole source, follow these steps:is calculated and displayed in Watts in its property dialog.

* Right click on the '''Short Dipoles''' item in the '''Sources''' section of the Navigation Tree and select '''Insert New Source..[[Image:Info_icon.png|40px]] Click here to learn more about ''' from the contextual menu[[Common_Excitation_Source_Types_in_EM. The Short Cube#Hertzian_Dipole_Sources | Hertzian Dipole dialog opens up.* In the Sources]]'''Source Location''' section of the dialog, you can set the coordinate of the center of the short dipole. By default, the source is placed at the origin of the world coordinate system at (0,0,0). * * In the '''Source Properties''' section, you can specify the '''Amplitude''' in Amp, the '''Phase''' in degrees as well as the '''Length''' of the dipole in project units.* In the '''Direction Unit Vector''' section, you can specify the orientation of the short dipole by setting values for the components '''uX''', '''uY''', and '''uZ''' of the dipole's unit vector. The default values correspond to a vertical (Z-directed) short dipole.  The total radiated power by your dipole source is calculated and displayed in Watts in the dialog.