Dual-Mode Circular Polarization Selective Surface Cell for Single-Layer Dual-Band Circularly Polarized Reflectarray

Table 1

Comparison with existing relevant works.

	[13]	[3]	[14]	This work
Available in RA?	N	Y	Y	Y
Available in CPSS?	Y	Y	N	Y
Available in dual-band?	N	N	Y	Y
Frequency (GHz)	9.8	8.37	20.6/30.4	11.6/14.6
Gain (dBi)	—	About 21	36.1/40.5	25.2/26.5
Efficiency (%)	—	25	40/50	41.2/55.5
1 dB gain BW (%)	—	9.4 (1.5 dB gain)	—	7.8/8.2
AR BW (%)	—	9.4 (3.5 dB AR)	—	31/32 (3 dB AR)
Insertion loss (dB)	0.2	—	—	1.2/-2.2

Y means yes and N means no.