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Table 1 Comparison of metasurface and reflectarray based RIS

From: Survey on reconfigurable intelligent surfaces below 10 GHz

Relectarray

Metasurface

Operation well-known, relatively easy to model

Difficult to model controllable surfaces

Simple to manufacture

Potentially more advanced functions

Simple control

Mutual coupling of meta-cells complicates the control

Readily available technology

Reconfigurable metasurfaces still in research phase