Miniaturized Ultrawideband Microstrip Antenna for IoT-Based Wireless Body Area Network Applications

Table 3

Comparing the proposed antenna with the literature.

Ref	Size (mm^3)	Freq (GHz)	Axial ratio BW (GHz)	Gain (dBi)	Efficiency (%)
[9]		2–10	3.2–6.1	1.6	80–85
[12]		2.25–4	2.4–4	3–3.5	>85
[13]		3.6–9.2	4.2–9.1	3.9–7.3	—
[16]		1.9–10.6	3.7–10.6	3–4.8	—
[41]		8.4–15.2	9.8–13	4.1	>72
[34]		2–7	2–6	8–12 (antenna being a array)	—
[42]		1.5–7	2.2–7	5–13 (antenna being a array)	91
[43]		2.9–12	—	1.2–6.3	85
This work		3.48–15	3.48–9	2.5–7.5	77–93