Research Article
A Wideband Circularly Polarized Dielectric Resonator Antenna Using Inverse f-Shaped Slot Excitation with Parasitic Metal Structure
Table 2
Comparison of the proposed antenna with existing works.
| Ref. | −10 dB IBW (GHz) | 3 dB AR BW (GHz) | Effective AR BW (%) | Gain (dBi) | Feeding type |
| [5] | 69.7% (2.90–6.00 GHz) | 44.7% (3.68–5.80 GHz) | 44.7 | 6.3 | Microstrip line | [6] | 20.3% (3.59–4.40 GHz) | 21.1% (3.60–4.45 GHz) | 20.0 | 6.5 | Microstrip line | [7] | 36.0% (4.00–5.80 GHz) | 26.0% (4.40–5.70 GHz) | 26.0 | 7.7 | Microstrip line | [8] | 26.7% (5.25–6.87 GHz) | 23.6% (5.42–6.87 GHz) | 23.6 | 3.4 | Slot couple | [9] | 46.9% (2.20–3.50 GHz) | 49.5% (2.20–3.70 GHz) | 46.9 | 4.7 | Slot couple | [10] | 49.7% (4.20–6.80 GHz) | 41.0% (4.30–6.70 GHz) | 41.0 | 1.5 | Slot couple | This work | 58.5% (2.61–4.77 GHz) | 55.2% (2.75–4.85 GHz) | 53.7 | 6.8 | Slot couple |
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