Planar High-Gain Millimeter-Wave Slotted SIW Cavity Antenna Array with Low Sidelobe and Grating Lobe Levels

Table 1

Parameters of the presented antenna element (unit: mm).

Parameters	L	W		r p	l s
Values	20	20	5.8	0.2	4.2	0.9
Parameters	s 1	s 2	r s	l c		r c
Values	0.3	0.4	0.2	4.6	0.7	0.2
Parameters	d s	p 0	r 0	d	h 1	h 2
Values	10	0.6	0.15	20.7	1	0.5