Plasma reflectarrays

This paper investigates the design of four different configurations of plasma reflectarrays. The results provide insight into different radiation characteristics of plasma reflectarrays. The proposed unit cell consists of cubic glass box filled with Argon gas energized with applied AC voltage. The reflectarray reflection coefficients phase variation is achieved by varying the plasma frequency of the energized gas. Four plasma reflectarrays for satellite applications at 12 GHz are proposed (centre-feed centre-beam, centre-feed offset-beam, offset-feed centre-beam, and finally offset-feed offset-beam). The finite integration technique is used to analyze the plasma reflectarray.