Reply To: Illumination with an incident angle greater than 0° FDTD

[pm796]

I also have what I think is the same or very similar question! If you have a plane wave source angled at say 45deg and at a distance say 'z' below a surface on which you wish it to be incident, do you also have to offset it laterally by 'z' to accommodate the fact that it is angled at 45deg? Or does the software ignore the incidence angle and automatically just take it and apply it to any structures directly in line with its footprint on the propagation axis? (And why is this not discussed or explained in the reference manual or 'FDTD course'?).