Scattering and RCS

Hi!
Could anyone tell me what is the best EM simulator to study the scattering from an inhimogeneous dielectric plate?Something between FEKO, HFSS or CST?I have a little experience about EM simulators.



gaudi

FEKO, HFSS , CST, Sonnet are all very excellent, and I use CST and Sonnet.

if the electric size is somewhat very large , you can try feko,or else Micro-stripes is a applicable choice!