Changes

Unlike the FDTD method, in the [[MoM3D Module]] you do method of moments does not need a far field box to perform near-to-far-field transformations. Nonetheless, But you still need to define a far field observable if you want to plot radiation patternsin EM.Libera. A far field can be defined by right clicking on the '''Far Fields''' item in the '''Observables''' section of the Navigation Tree and selecting '''Insert New Radiation Pattern...''' from the contextual menu. The Radiation Pattern dialog opens up. You can accept most of the default settings in this dialog. The Output Settings section allows you to change the '''Angle Increment''' for both Theta and Phi observation angles in the degrees, which . These [[parameters]] indeed sets set the resolution of far field calculations. The default value is values are 5 degrees. After closing the radiation pattern dialog, a far field entry immediately appears with its given name under the '''Far Fields''' item of the Navigation Tree and can be right clicked for further editing. After a Wire MOM 3D MoM simulation is finished, three radiation patterns plots are added to the far field entry in the Navigation Tree. These are the far field component in Theta direction, the far field component in Phi direction and the total far field. The 3-D plots can be viewed by clicking on their name in the navigation tree. They are displayed in the Project Workspace and overlaid on the project's structure. The view of a 3-D radiation pattern plot can be changed with the available view operations such as rotate view, pan, zoom, etc. If the structure blocks the view of the pattern, you can simply hide the whole structure or parts of it. The fields are always normalized to the maximum of the total far field: