Design a Multistub Array Antenna at 28 GHz with Beam Switching Ability

Table 1

Calculations for , , and

(degree)	L 0 (mm)	L 1 (mm)	L 2 (mm)	L 3 (mm)	(degree)
30	7.86	7.21	6.55	5.89	3.94
45	7.86	6.33	5.42	4.51	6
90	7.86	5.89	3.93	1.96	11.9