Research Article
A Low-Profile Circularly Polarized Conical-Beam Antenna with Wide Overlap Bandwidth
Table 2
Comparison of the proposed and other conical-beam CP antennas.
| Ref. | Dimension of the antenna () | Impedance bandwidth | AR bandwidth | Overlap bandwidth |
| [18] | | 19.8% (2.27-2.77 GHz) | 19.3% (2.25-2.73 GHz) | 18.4% (2.27-2.73 GHz) | [19] | | 28% (4.9-6.5 GHz) | 14.4% (5.8-6.7 GHz) | 11.4% (5.8-6.5 GHz) | [20] | | 19.6% (2.16-2.63 GHz) | 27.4% (2.05-2.7 GHz) | 19.6% (2.16-2.63 GHz) | [21] | | 21.9% (5.5-6.85 GHz) | 15.9% (5.8-6.8 GHz) | 15.9% (5.8-6.8 GHz) | [22] | | 17.5% (5.7-6.75 GHz) | 26.5% (5.19-6.78 GHz) | 17.5% (5.7-6.75 GHz) | This work | | 35.6% (4.97-7.14 GHz) | 30.1% (4.97-6.73 GHz) | 30.1% (4.97-6.73 GHz) |
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is the free space wavelength at the starting frequency of the overlap bandwidth. |