A Millimeter-Wave Antipodal Linearly Tapered Slot Antenna Array for 5G Wireless Communication

Table 1

Comparison of this work with other reported works.

Item	This work	[8]	[13]	[18]	[19]	[30]	[31]
Publication year	N/A	2020	2020	2013	2021	2018	2017
Antenna type	ALTSA	AVA	AVA	ALTSA	ALTSA	BAVA	AVA
Topology type	SICL	Microstrip	DRSIW	SIW	SAFSIW	Stripline	Microstrip
Substrate type	2-Layer	1-Layer	3-Layer	1-Layer	3-Layer	2-Layer	1-Layer
Permittivity	2.2	2.2	2.2	2.94	2.94	2.2	2.65
					2.2
Thickness (mm)	0.608	0.787	2.361	0.508	1.524	0.508	1
Centre freq. (GHz)	30	26.5	25	26	33	25	8.9
Fractional bandwidth	33%	15.34%	113.73%	38.4%	40.9%	120%	137%
Gain (dBi)	16.68∼18.77	9.41∼11.44	2.15∼5.75	10∼18	11.65∼14.35	9.6∼15	0∼15
E-plane X-pol (dB)	−34.7@27 GHz	−12@26 GHz	−16@15 GHz	−17.0@24 GHz	−17.5@29 GHz	−32@10 GHz	−35.0@2.8 GHz
	−39.4@30 GHz	−10@28 GHz	−8@25 GHz	−22.0@28 GHz	−22.0@33 GHz	−21@30 GHz	−29.3@10 GHz
	−24.7@33 GHz		−10@33 GHz	−10.8@31 GHz	−22.5@37 GHz	−18@40 GHz	−24.8@15 GHz
H-plane X-pol (dB)	−31.6@27 GHz	−12@26 GHz	−18@15 GHz	−19.5@24 GHz	N/A	N/A	−40.0@2.8 GHz
	−40.7@30 GHz	−10@28 GHz	−8@25 GHz	−22.0@28 GHz			−29.3@10 GHz
	−26.1@33 GHz		−8@33 GHz	−10.8@31 GHz			−24.8@15 GHz
Size (λ0 ◊ λ0)	8.94◊2.7 (1◊2 array)	6.18◊2.97 (1◊8 array)	1.91◊0.83	(≥7.78)◊0.88	∼7.2◊∼2.3	6.66◊2	2.08◊1.48