Changes

Far fields are typically computed in the spherical coordinate system as functions of the elevation and azimuth observation angles θ and φ. Only far-zone electric fields are normally considered. From When your physical structure is excited using a knowledge lumped source, a waveguide source, a distributed source, a short dipole source, or an array of such sources, the far fieldsrepresent the radiation pattern of your source(s) in the far zone. When your physical structure is illuminated by a plane wave source or a Gaussian beam source, the far fields represent the scattered fields. In the case of a plane source, you can compute the radiation patterns, other radiation characteristics and radar cross section (RCS) of targetsyour target structure.