High-Gain SIR Dual-Band Antenna Based on CSRR-Enhanced SIW for 2.4/5.2/5.8 GHz WLAN

Table 2

Comparison to reported dual-band or multifrequency antenna and arrays.

Ref.	Bandwidth (low-/high-band)	Elements no.	Dimension (λ0)	Gain (low-/high-band) (dBi)
[2]	7.8%/30.1%/12.5%	Single	0.35 × 0.35	2.3/2.8/4.1
[7]	10.6%/16.6%	3 × 2	1.1 × 1.83	14.3/16.2
[8]	14.9%/13.2%	2 × 4	3.35 × 0.98	12.1/12.4
[9]	9.3%/4.3%	4 × 4	2.83 × 1.73	13.2/17.2
[10]	12%/10.5%	Single	0.3 × 0.33	4.5/7
[11]	4.18%/12.2%	Single	0.53 × 0.41	0.5/2.3
[12]	17%/8.25%	Single	n.a.	4.5/6.8
This work	16%/18.2%	Single	0.23 × 0.34	7/7.7