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Table 4 Comparison study with existing works

From: Enhanced radiation characteristics of regular dodecagon split ring resonator (D-SRR)-based microstrip patch antenna employing dielectric superstrate for THz applications

References Frequency band (THz) Reflection coefficient (dB) Bandwidth (GHz) Directivity (dB) Peak gain (dB)
[38] 0.5 −22 80 2.8 /
[39] 0.64–0.85 −35 / 5.6 /
[32] 0.69–0.77 −41.65/−25.30 224.7 / 10.43
[40] 0.69 −34.9 / 7.01 6.68
[35] 0.63 −44.71 / 8.61 7.94
[34] 0.67 / / 5 5.22
[41] 0.69 / / 6.59 5.74
This work 0.66–0.69 −40.53/−37.13 108 9.84 10.4