Miniaturized Dual-Band Antenna for GSM1800, WLAN, and Sub-6 GHz 5G Portable Mobile Devices

Table 3

Proposed OBS antenna and other works in the literature Comparative Analysis.

References	Size	Substrate	FREQ (GHz)	Imp. Bandwidth (MHz)	Gain
[19]	0.2 × 0.18	FR4	2.48/3.49	340/390	2.4/3.5 (dB)
[20]	0.23 × 0.18	FR4	2.49/4.2/7.4	300/1000/800	2.92/4.13/5.85 (dB)
[7]	0.25 × 0.10	RT5880	2.45/2.97/3.52/4.07/4.65/5.71/6.67	30/10/180/130/60/1970/1970	2.3/2.61/2.44/2.46/3.21/3.14/3.15 (dBi)
[1]	0.33 × 0.33	FR4	2.5/4.2/5.5/6.8	70/90/350/710	0.7/0.5/1.8/4.3 (dBi)
[9]	0.21 × 0.16	FR4	2.5/3.5/5.5	760/964/800	1.5/1.7/3.05 (dBi)
[11]	0.19 × 0.15	Polyamide	2.4/3.8/5.6	140/240/370	2.26/3.14/3.73 (dBi)
This work	0.14 × 0.07	RT5880	1.85/5.9	190/2290	4.1/3.95^+ (dB)

center frequency; ⁺average gain.