Research Article
Wideband Omnidirectional Slotted-Waveguide Antenna Array Based on Trapezoidal Slots
Table 3
Comparison among multiple omnidirectional antennas.
| | Reference | Manufacturing technology | Polarization | Gain (dBi) | Gain ripple (dB) | Operational frequency (GHz) | Bandwidth (GHz) |
| | [25] | Printed | Vertical | 1.8 | 0.5 | 5.7 | 1.07 | | [26] | Printed | Circular | 2.4 | 1.5 | 2.45 | 0.245 | | [27] | Printed | Circular | 2 | 0.6 | 2.6 | 0.52 | | Our work | SWAA | Vertical | 12.49 | 2.7 | 24.15 | 1.09 |
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