Hi all
i desire to design frequency selective surfaces in CST, but i use the unit cell boundary conditions and frequency domain solver. The S parameter results are Szmin and Szmax, but really i cant know which are the RL. and which are TL.
Can any one help me or explain Szmin, Szmax?
Also can i simulate the FSS using time domain solver?
Zmin and Zmax are your port locations. As an example, assuming Zmax is port 1 and Zmin port 2, SZmax(a),Zmax(a) corresponds to S11.
S21 would then be SZmin(a),Zmax(a).
where (a) represents the polarisation.
Cross-polarised terms would be something like SZmin(a),Zmax(b).
You can, but I think it is only for normal incidence. You can definitely set it up for oblique incidence but it is not as streamlined as using the frequency domain solver.