Research Article
Circularly Polarized Omnidirectional Antenna with Dipole Core and Diagonally Adjoined Parasitic Braces for ISM Band Applications
Table 3
Comparison between CP omnidirectional antennas.
| Ref. | Impedance bandwidth | AR bandwidth | Gain | Size (mm3) | Radiation Pattern |
| 5 | 2.32 – 2.54 GHz | 2.32 – 2.61 GHz | 1.20 dBic | 33 × 33 × 20 | Omnidirectional | 11 | 2.40 – 2.51 GHz | 2.46 – 2.48 GHz | 1.90 dBic | 80 × 46 × 6 | Omnidirectional | 15 | 2.27 – 2.77 GHz | 2.25 – 2.73 GHz | 3.75 dBic | 180 × 180 × 3 | Omnidirectional | 16 | 2.30 – 2.94 GHz | 2.39 – 2.57 GHz | 0.91 dBic | 39 × 39 × 33 | Omnidirectional | 19 | 2.37 – 2.63 GHz | 2.37 – 2.56 GHz | 1.56 dBic | 53 × 53 × 20 | Omnidirectional | 20 | 2.39 – 2.51 GHz | 2.39 – 2.51 GHz | 1.12 dBic | 50 × 50 × 20 | Omnidirectional | proposed | 2.35 – 2.57 GHz | 2.40 – 2.60 GHz | 2.07 dBic | 52 × 52 × 56 | Omnidirectional |
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