Design of a Dual-Band Bidirectional Antenna Using Superellipse-Monopole-Fed Rectangular Ring for IEEE 802.11 a/b/g/n Applications

Table 2

Comparison of peak gain and antenna efficiency.

Frequency (GHz)	Peak Gain (dBi)		Efficiency ()
	Calculated	Measured	Calculated	Measured
2.4	4.64	4.52	0.992	0.894
2.45	4.86	4.67	0.996	0.885
2.5	4.97	4.73	0.998	0.879
5.2	7.11	7.10	0.997	0.921
5.5	7.92	7.83	0.994	0.909
5.8	7.98	7.85	0.962	0.875