=== Visualizing The Far Fields ===
[[File:PMOM118.png|thumb|300px|[[Planar Module]]'s Radiation Pattern dialog]]
Even though the planar MoM engine does not need a radiation box, you still have to define a "Far Field" observable for radiation pattern calculation. This is because far field calculations take time and you have to instruct EM.Cube to perform these calculations. To define a far field, right click the '''Far Fields''' item in the '''Observables''' section of the Navigation Tree and select '''Insert New Radiation Pattern...'''. The Radiation Pattern Dialog opens up. You may accept the default settings, or you can change the value of '''Angle Increment''', which is expressed in degrees. You can also choose to '''Normalize 2D Patterns'''. In that case, the maximum value of a 2D paten graph will have a value of 1; otherwise, the actual far field values in V/m will be used on the graph.
[[File:PMOM119.png|800px]]
Figure 2: 3D polar radiation pattern plot of a microstrip-fed patch antenna.
[[File:PMOM120.png|800px]]
Figure 2: 3D vectorial (cone) radiation pattern plot of a microstrip-fed patch antenna.
The 2D radiation pattern graphs can be plotted from EM.Cube's '''Data Manager'''. A total of eight 2D radiation pattern graphs are available: 4 polar and 4 Cartesian graphs for the XY, YZ, ZX and user defined plane cuts.