A Wideband Printed Directional Antenna Array with Impedance Regulating Load

Table 2

Antenna performance comparison between the antennas proposed in this paper and other references.

Antenna type	Operating bandwidth	Relative bandwidth	Gain	Gain per wavelength (K)
The proposed antenna array	1.5–2.52 GHz	50.7%	5.4–8.7 dBi	19.91 dBi/λ
Antenna array in [6]	2.9–4.3 GHz	38.9%	7.5 dBi	5.38 dBi/λ
Antenna array in [7]	5.0–5.36 GHz	6.9%	12.5–13.3 dBi	6.50 dBi/λ