Passive and Active Reconfigurable Scan-Beam Hollow Patch Reflectarray Antennas

Table 2

Parameters of the varactor-loaded hollow patch.

Parameter	Value
Operating frequency	𝑓 = 6.0 GHz
Substrate thickness	ℎ = 1.575 mm
Substrate permittivity	𝜖𝑟 = 2.45
Loss tangent	tan 𝛿 = 0.0012
Patch width, length	𝑊 = 15 mm, 𝐿 = 11.8 mm
Slot width, length	𝑊ℎ = 13 mm, 𝐿ℎ = 0.4 mm
Substrate width, length	𝜆0/2, 𝜆0/2mm
Chip thickness	0.5 mm
Chip width	0.65 mm
Chip length	0.9 mm
Resonance capacitance	𝐶0 = 0.55∼0.6 pF