site:www.edaboard.com cst dispersion diagram
I want to draw dispersion diagrams of several PBG(photonic bandgap) materials using Ansoft HFSS. I already know the basic theoretical things related to PBGs. And I also can draw the dispersion diagram using CST MWS.
But, in case of HFSS, it's not easy for me to draw that.
I used master/slave boundary conditions, and swept the phase between those boundaries.
But, HFSS gives somewhat unstable eigenmode frequencies and the bad values of "max delta freq %" , which fluctuate severely.
So I can hardly obtain the dispersion diagram.
I guess there may be some mistakes in dealing with the boundary conditions..
Is there anybody to help me with this problem?