Bandwidth Behavior of Closely Spaced Aperture-Coupled Reflectarrays

Table 3

Antenna dimensions (reflectarray unitary cell equal to: Δ 𝑥=Δ𝑦=0.6𝜆 and Δ𝑥=Δ𝑦=0.4𝜆.

Layer	Δ𝑥=Δ𝑦=0.6𝜆	Δ𝑥=Δ𝑦=0.4𝜆
Patch (𝑊×𝐿)	4.9 mm × 3.68 mm	4.9 mm × 3.2 mm
Slot (𝑊𝑎×𝐿𝑎)	0.4 mm × 3.25 mm	0.4 mm × 3.8 mm
Stub (𝑊𝑚×𝐿𝑠)	0.65 mm × 1.98 mm	0.65 mm × 2.1 mm