Table 2.

Comparison between the proposed and some existing antennas.

Article	Dimension (mm × mm)	Resonance frequency (GHz)	Bandwidth (MHz)	Average gain (dB)
[9]	43.25 × 30	10.16	3700	N/A
[7]	30.08 × 45.9	10	1100	6
[21]	25.4 × 25.4	9.76	N/A	N/A
[22]	17.56 × 18.04	9.75	1801	3.56
[23]	11.01 × 13.9	9	110	N/A
[24]	4 × 9	11.4	210	4.82
Proposed	20 × 17.2	8.95, 11.06, 11.85	450, 1010, 450	4.45, 3.99, 4.17