# Illusion Mechanisms with Cylindrical Metasurfaces: A General Synthesis Approach

## TL;DR

This paper introduces a general synthesis method for cylindrical metasurfaces that can create electromagnetic illusions such as scattering cancellation and fictitious sources, with potential applications in stealth, antennas, and wireless power.

## Contribution

The paper presents a novel, comprehensive synthesis approach for cylindrical metasurfaces using effective polarizability tensors, enabling tailored electromagnetic illusions.

## Key findings

- Demonstrated synthesis of metasurfaces for scattering cancellation
- Achieved creation of fictitious line sources
- Outlined practical implementation with loaded dipole antennas

## Abstract

We explore the use of cylindrical metasurfaces in providing several illusion mechanisms including scattering cancellation and creating fictitious line sources. We present the general synthesis approach that leads to such phenomena by modeling the metasurface with effective polarizability tensors and by applying boundary conditions to connect the tangential components of the desired fields to the required surface polarization current densities that generate such fields. We then use these required surface polarizations to obtain the effective polarizabilities for the synthesis of the metasurface. We demonstrate the use of this general method for the synthesis of metasurfaces that lead to scattering cancellation and illusion effects, and discuss practical scenarios by using loaded dipole antennas to realize the discretized polarization current densities. This study is the first fundamental step that may lead to interesting electromagnetic applications, like stealth technology, antenna synthesis, wireless power transfer, sensors, cylindrical absorbers, etc.