Arbitrary Transformation of Antenna Radiation Using a Cylindrical Impedance Metasurface

In this letter, we show that a cylindrical, single-layer impedance metasurface enclosing a radiating source is capable of reshaping the electromagnetic field pattern at a predetermined radius outside of the metasurface. We first present the design procedure of a cylindrical impedance metasurface and then proceed to an example demonstrating the achievable pattern accuracy. Simulation results validate the design methodology and show that complete amplitude control can be achieved in the azimuthal direction for a vertically polarized source.