Since the center frequency of the project is 1GHz, the operating wavelength is:
:<math>\lambda_0 = c/{1\product times 10^9} = 0.29979m = \cong 330mm}</math>
In EM.Cube’s [[FDTD Module]], objects are grouped together and organized by material under the “Physical Structure” node of the Naviation Tree. Since you selected no material for your line object, the first drawn object is automatically assigned a <i>PEC_1</i> material group. The default perfect electric conductor (PEC) group is set as the active material. When a material group is set as active, its name appears in bold letters, and all subsequently drawn objects will be placed under that material node. Any material group can be set as the active material by right-clicking on its name in the Navigation Tree and selecting <b>Activate</b> from the contextual menu.
==1.4 omputational Domain & Boundary Conditions==