A New Wideband Circularly Polarized Dielectric Resonator Antenna Loaded with Strips

Table 2

Comparison of the designed antenna with previously reported antennas

Ref. Antenna	Type	Antenna size (λ0^3)	−10 dB IBW (%)	3 dB ARBW (%)	Overlapping BW (%)	Peak gain (dBic)
[15]	Using Archimedean spiral slot	0.56 × 0.56 × 0.09	NA	25.5	25.5	5.0
[17]	Joining two rectangular DRs	0.98 × 0.98 × 0.26	37.0	22.0	22.0	5.7
[21]	Using trapezoidal DR	1.20 × 1.20 × 0.45	34.6	20.4	20.4	8.4
[26]	Using parasitic vertical plates	0.72 × 0.72 × 0.18	46.9	49.5	46.9	4.7
[27]	Using partially reflective surface	1.38 × 1.38 × 0.60	54.3	54.9	54.1	14.2
[28]	Using two parasitic half-ring DRs	0.76 × 0.76 × 0.20	52.2	46.8	46.8	5.7
Proposed	Using two pairs of driven L-like DR strips	0.76 × 0.76 × 0.20	54	42.1	42.1	5.92

λ₀ is the free space wavelength at the center frequency of the overlapped band.