I am trying to characterize a single antenna which is excited by a TF/SF source at normal incidence. My objective is to explicitly get the transmission by using the
trans_box analysis group that I have modified myself. I am aware of the fact that percentage of the optical power transmitted are not reliable as with other sources as indicated on Scattering simulation using TFSF source shows more power
However, I am concerned with the comparison of transmission on different sides(x normal, y normal, z normal and in different directions) of the transmission cube and I think there will not be any problems without proper normalization. This antenna is a forward scatterer and I want to maximize the transmission at 1550 nm of incident free space wavelength by varying the base width of the triangular antenna.
I proceeded as follows:
- I put a modified transmission box with x-normal and y-normal faces residing inside the TF region of the TF/SF source.
- I put a modified transmission box with x-normal and y-normal faces residing outside the TF region of the TF/SF source, in other words this time they record the scattered fields.
- The z-monitors are in the same place in both cases: the reflection monitor is inside the SF region just before the source injection plane, but I placed the transmission monitor inside the TF region after the beam passes through the substrate and the gold film perforated with the antenna.
I am not sure if my approach is correct and I am pretty confused. In order to clarify matters I am attaching my fsp file to this post. I appreciate your assistance and feedback.
DeltaAntennaSweep.fsp (299.0 KB)