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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