THz Bandpass Filter Design Using Metamaterial-Based Defected 1D …
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a sharp decrease in bandwidth at 3.56 µm. In Fig. 9b, it is observed that with slow
increase variation in the air thickness, bandwidth is increased (about 0.63 µm).
In Fig. 10a, keeping air thickness and metamaterial length fixed angle of incidence
is varied (its variation is in the range from 9° to 13°). Here, the bandwidth is changed
with the increase in angle of incidence which ranges from 9° to 13° and almost forms
a ramp structure. In Fig. 10b, here the same process is maintained (i.e. keeping air
Fig. 9 a Bandwidth with length of metamaterial for oblique incidence (10° incident angle) TE
mode for defected structure considering paired nanorod. b Bandwidth with air thickness for oblique
incidence (10° incident angle) TE mode for defected structure considering paired nanorod
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a sharp decrease in bandwidth at 3.56 µm. In Fig. 9b, it is observed that with slow
increase variation in the air thickness, bandwidth is increased (about 0.63 µm).
In Fig. 10a, keeping air thickness and metamaterial length fixed angle of incidence
is varied (its variation is in the range from 9° to 13°). Here, the bandwidth is changed
with the increase in angle of incidence which ranges from 9° to 13° and almost forms
a ramp structure. In Fig. 10b, here the same process is maintained (i.e. keeping air
Fig. 9 a Bandwidth with length of metamaterial for oblique incidence (10° incident angle) TE
mode for defected structure considering paired nanorod. b Bandwidth with air thickness for oblique
incidence (10° incident angle) TE mode for defected structure considering paired nanorod