THz Bandpass Filter Design Using Metamaterial-Based Defected 1D …
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that with slow increase variation in the air thickness, bandwidth is increased, and a
sharp increase is seen from 0.50 µm air thickness which results in the variation of
bandwidth (about 0.06 µm). It is almost continuous in nature.
In Fig. 6a, it is seen that the bandwidth is almost unchanged for the variation of
metamaterial length (it is varied in a small range from 2.28 to 2.34 µm) except for
a sharp change of bandwidth at 2.285 µm. At this point, bandwidth is increased to
0.04 µm. Again when metamaterial length becomes 2.33 µm, bandwidth rises upto
0.0408 µm. In Fig. 6b, it is observed that with the increase in variation of the air
thickness, bandwidth is increased, and a sharp increase is seen from 0.55 µm air
thickness which results in the variation of bandwidth (about 0.06 µm).
Fig. 5 a Bandwidth with length of metamaterial for normal incidence of EM wave for defected
structure considering nanofishnet structure having elliptical void [34]. b Bandwidth with air thickness for normal incidence of EM wave for defected structure considering nanofishnet structure
having elliptical void [34]
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that with slow increase variation in the air thickness, bandwidth is increased, and a
sharp increase is seen from 0.50 µm air thickness which results in the variation of
bandwidth (about 0.06 µm). It is almost continuous in nature.
In Fig. 6a, it is seen that the bandwidth is almost unchanged for the variation of
metamaterial length (it is varied in a small range from 2.28 to 2.34 µm) except for
a sharp change of bandwidth at 2.285 µm. At this point, bandwidth is increased to
0.04 µm. Again when metamaterial length becomes 2.33 µm, bandwidth rises upto
0.0408 µm. In Fig. 6b, it is observed that with the increase in variation of the air
thickness, bandwidth is increased, and a sharp increase is seen from 0.55 µm air
thickness which results in the variation of bandwidth (about 0.06 µm).
Fig. 5 a Bandwidth with length of metamaterial for normal incidence of EM wave for defected
structure considering nanofishnet structure having elliptical void [34]. b Bandwidth with air thickness for normal incidence of EM wave for defected structure considering nanofishnet structure
having elliptical void [34]