A Super Wideband Directional Compact Vivaldi Antenna for Lower 5G and Satellite Applications

Table 3

Comparison with some recently published works.

Ref. no.	Size (L × W × h) mm^3	Max. gain (dBi)	BW (GHz)	Return loss (dB)
[16]	186 × 77 × 0.55	16	2.5–57	—
[17]	62 × 50.8 × 0.8	10	1.3–20	≈−33
[18]	100 × 60 × 0.008	15	3–22	≈−45
[19]	60 × 40 × 0.508	17.7	3.68–43.5	≈−43
[20]	100 × 96 × 0508	2.2–11	1–30	≈−35
[21]	68 × 52 × 0.25	14	6–18	≈−43
[22]	80 × 44 × 9.2	-	2.4–18	≈−40
[23]	140 × 66 × 1.5	≈10	5–27	≈−25
[24]	70 × 50 × 1	15	2.8–15	≈−31
[25]	66.5 × 50 × 1	8.5	10–30	≈−50
[26]	36 × 32 × 2	8	2.5–11	≈−40
[27]	31 × 20 × 0.51	11	5.3–40	≈−25
[28]	200 × 125 × 1.2	10.5	0.95–15.5	—
Our designed	45 × 35 × 0.79	10.2	3.06–26.25	−40.32