Design of Coaxially-Fed, Concentrically-Cascaded, Cylindrical Metasurfaces

In this paper, arbitrary cylindrical field synthesis is demonstrated using coaxially-fed, concentrically-cascaded meta-surfaces. The metasurfaces are designed using multimodal network theory. The interaction between the feed and the metasurfaces is accounted for by cascading their respective S-matrices. By incorporating the coaxial feed into the design approach, the proposed framework resolves a long-standing difficulty in physically implementing cylindrical metasurface structures.