Can HFSS solve 2-D problem?

Dear all,

I am trying to solve this kind of problem: a multiple-layer absorbers which contains several layers of FSSs sandwitched by parallel absorbers. This problem can be solved by HFSS directly. Howerver it is slow and I would like to solve it by transmission matrix method. This method needs to calculate every layer's impedance matrix, as well as the FSS layer. Now my problem is: how to calculate the impedance matrix of FSS layer by 2D module of HFSS?


Thanks,
Zhanghong Tang