rcs fdtd

Hi,

RCS = 4 X PI X R^2 (Mod(Es) ^2 / Mod(Ei)^2), where Es is the scattered E - field and Ei is the incident E - field. R is the distance from source to the scatterer.
In FDTD if you want to implement this you need to implement a near field to far field transformer (Refer Taflove, Chapter 8, 3rd Edition). (I haven't tried this implementation yet).
There are other formulae as well for RCS computation.

Best Regards
Jithesh

Added after 5 minutes:

Have a look at the link
https://www.edaboard.com/ftopic110064.html
Topic : "FDTD far field implementation"
for a Python code for NF to FF implementation in FDTD.

Regards
Jithesh

Hi

Thanks for your acknowledgement.

Regards
Jithesh