Compact Millimeter-Wave Antenna Array with Low Sidelobe Level for Vital Sign Monitoring Application

Table 3

Comparison between proposed and reported single-layer low sidelobe arrays.

	Ref.
	[7]	[9]	[16]	Our work
Center freq. (GHz)	24.125	79	24	24
Feeding lines	MS	MS
Min. SLL (dB)	-24.7	-19.4	-22.5	-25.5
# of element
Style of feeding	Back	Side	Back	Side
Impedance BW	1.04%	3.19%	1.7%	5%
Max. gain (dBi)	16.1	13.88	24	17.8

MS: microstrip line; CPW: coplanar waveguide. Obtained from the figure.