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A. Deyasi and A. Sarkar
seen that the bandwidth is gradually increased for the increased variation of metamaterial length (its range is from 0.0318 to 0.33 µm). In Fig. 8b, it is observed that
with slow increase variation in the air thickness, bandwidth is increased and almost
forms a ramp structure (about 0.81 µm).
In Fig. 9a, it is seen that the bandwidth is monotonously increasing for the increasing variation of metamaterial length (its range is from 3.5 to 3.56 µm) except for
Fig. 8 a Bandwidth with length of metamaterial for normal incidence for defected structure considering paired nanorod. b Bandwidth with air thickness for normal incidence for defected structure
considering paired nanorod