Thanks Sir...... finally i got dispersion diagram for  EBG...

Hello Sir,

I think this link will help you.

http://www.emtalk.com/tut_2.htm

You can also find HFSS tutorials regarding this diagram.

Regards,

thanks mam.

I followed the procedure as mentioned in document but at last it is given that by dispersion diagram is plotted by exporting the eigenvalues obtained from HFSS and using an external plotting program. can you suggest how i can plot dispersion diagram with 3 graphs which are given in document.

you can use matlab for plotting. first export the values and use them to plot. use "hold" command to combine all the three plots

 Thanks Sir...... finally i got dispersion diagram for  EBG...