Hello, I am trying to design a fual band filter using uniplanar EBG structure. The difference in frequency is small (0.6GHz). So to attain resonation at two close frequencies you need to have high Q-factor. So how can I increase the Q-Factor. Does the number of cells and their periodicity effect it.?
Hello
Yes, both the number of cells and their periodicity affect the Q-factor. Increasing the number of cells in the EBG structure can increase the Q-factor of the filter and also by optimizing the periodicity, you can achieve a resonant frequency that is closer to the desired frequency, which can also improve the Q-factor. Moreover, a higher dielectric constant substrate can increase the capacitance of the resonator which in turn helps us to further improve the Q-factor.
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