I am working on a problem where I use a method similar to this: https://kb.lumerical.com/en/ref_sim_obj_tfsf_custom.html (i.e. the differential method)
Using this method I can get E, H, P, etc for any frequency-domain monitor I like, where the field from the source is eliminated. However, I would like to use this data to generate a far-field projection (farfield3d or similar).
farfield3d only seems to work for actual monitors, preventing me from using the data sets acquired through the differential method for far-field projection.
Is there a way to generate a far-field projection using the field components E, H?