Changes

===Lumped Sources===

A '''Lumped Source '''is the most commonly used way of exciting a structure in EM.Cube's [[FDTD Module]]. A lumped source acts as a voltage source in series with an internal resistance that is placed between two adjacent mesh grid nodes on a line object. The line object must be parallel to one of the three principal axes. <font color="red"><u>'''In order to create a lumped source, you must have at least one line object in the project workspace.'''</u></font>