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Summary of the antenna performance when varying the radius of the slot of the ground plane.
| Rc (mm) | 0 | 4 | 8 | 12 | 16 | 20 |
| Res. Freq. (GHz) | 2.63 | 2.57 | 2.45 | 2.26 | 2.12 | 2.2 |
| Peak Gain (dBi) | 1.54 | 1.63 | 2.44 | 2.53 | 2.78 | 3.24 |
| Rad. Effi. (%) | 40 | 39.7 | 42.6 | 49.8 | 60.1 | 74.5 |
| F/B (dB): XZ-plane | 16.1 | 14.6 | 8.6 | 5 | 2.8 | 1.6 |
| F/B (dB): YZ-plane | 16.1 | 14.6 | 8.6 | 5 | 2.7 | 1.5 |
