Demonstration of Millimeter Wave 5G Setup Employing High-Gain Vivaldi Array

Table 1

Characteristic comparison of various Vivaldi antenna designs.

Single element					Arrays
Ref.	Frequency	Bandwidth (GHz)	Gain (dBi)	Dimensions (mm)	Bandwidth (GHz)	Gain (dBi)	Number of elements	Dimensions (mm)
[17]	32 GHz	24.5–40	7	14 × 8 × 0.508	28–38	15	1 × 8	60 × 30.2 × 0.508
[18]	28 GHz	27.4–28.6	5.39	17.25 × 5 × 0.8	27.4–28.6	12	1 × 8	130 × 60 × 0.8
[19]	28 GHz	26–31	4	15 × 5 × 0.4	26–31	16	1 × 8	15 × 5 × 0.8
[20]	28 GHz	25–40	13	59 × 8 × 0.508	—	—		—
[21]	28 GHz	10–40	12	79.9 × 24 × 0.254	—	—		—
Proposed	28/38 GHz	25–40	13	73.4 × 19.3 × 0.203	25–40	16	1 × 4	135 × 97.5 × 0.203