Investigation on Wearable Antenna under Different Bending Conditions for Wireless Body Area Network (WBAN) Applications

Table 4

Comparison of the experimental result of the wearable MIMO antenna.

Ref	Element	Substrate	Freq (GHz)	BW (%)	S21 (dB)	Gain (dBi)	MIMO gap	Complexity
[5]	3	Polyamide (ɛr = 3.5)	2.45	8	18	−4.75	0.12 λ	Medium
[13]	2	Jeans (ɛr = 1.6)	3.1	129	>26	6.9	0.052 λ	Medium
[15]	2	Jeans (ɛr = 1.6)	2.45	136	>22	3.75	0.058 λ	Medium
[14]	2	Felt (ɛr = 1.2)	2.45	20	>15	1.67	Not mentioned	Medium
Proposed	2	Felt (ɛr = 1.44)	2.45	7	>26	4.7	0.1 λ	Simple