Can some one please tell how to plot light or air lines for EBG unit cell dispersion diagrams in HFSS k=2pi lamda /c is known. But ehat is the procedure to get freq vs wave number (deg) graph? Please help.
i know about waveguides, when you use Img(gamma) in report option you get the cutoff and propagation constant for different modes of waveguides. Same logic should apply in your case also.