Ref. | Antenna size | BW (GHz) | Gain (dBi) | 3 dB BW (degree ˚) |
[2] | 34.6 × 21.5 | 3.28 - 6.95 | 4.5 | 78˚ |
[3] | 25 × 25 | 3.1 - 10 | - | 60˚ |
[4] | 40 × 26 | 3.1 - 10.6 | - | - |
[5] | 23 × 29 | 4.5 - 10 | 5 | - |
[6] | 19 × 19 | 2 - 8 | - | 80˚ |
[7] | 30 × 30 | 0.5 - 2 | 6.3 | 78˚ |
[8] | 42.8 × 42.8 | 3.1 - 10.6 | 5.5 | - |
[9] | 19.3 × 27.7 | 3.05 - 15 | 3.5 | 90˚ |
[10] | 28 × 32 | 5.3 - 8.5 | 5 | 70˚ |
[11] | 16 × 21 | 3.4 - 12.5 | 4.5 | 85˚ |
[12] | 75 × 75 | 1.15 - 4.4 | 2.9 | 60˚ |