Can anybody please give references for drawing dispersion diagram in HFSS
http://www.emtalk.com/tut_2.htm
this link is usefull.
you can use cst software too.
for cst, marcelo's answer in this link is useful too.
https://www.researchgate.net/post/How_to_plot_reflection_phase_diagram_of_an_EBG_structure_using_CST
this pdf is good too
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