Can anyone tell me the best way to simulate multiple thin layers in HFSS. I'm currently having problems with the layered impedance boundary.
I am trying to develop RF circuit on a ferroelectric material (the properties are dependent on the biasing voltage) of 200nm thickness which is deposited over a 525um thick Silicon substrate. The problem is whenever I change the properties of the thin substrate, the response remains the same. I tried using local mesh settings and layered impedance boundary conditions in HFSS but both are not working. Can anyone help me in this regard?