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)44.76.3Microstrip line
[6]20.3% (3.59–4.40 GHz)21.1% (3.60–4.45 GHz)20.06.5Microstrip line
[7]36.0% (4.00–5.80 GHz)26.0% (4.40–5.70 GHz)26.07.7Microstrip line
[8]26.7% (5.25–6.87 GHz)23.6% (5.42–6.87 GHz)23.63.4Slot couple
[9]46.9% (2.20–3.50 GHz)49.5% (2.20–3.70 GHz)46.94.7Slot couple
[10]49.7% (4.20–6.80 GHz)41.0% (4.30–6.70 GHz)41.01.5Slot couple
This work58.5% (2.61–4.77 GHz)55.2% (2.75–4.85 GHz)53.76.8Slot couple