# Near-Perfect Conversion of a Propagating Plane Wave into a Surface Wave Using Metasurfaces

## TL;DR

This paper presents theoretical and numerical methods for nearly perfect conversion of a plane wave into a surface wave using metasurfaces, advancing antenna technology and wave manipulation.

## Contribution

It introduces a novel approach to design lossless boundaries for efficient plane-to-surface wave conversion, with practical numerical demonstrations.

## Key findings

- Achieved near-perfect plane-to-surface wave conversion
- Developed an approximate field solution satisfying energy conservation
- Potential applications in perfect leaky-wave antennas

## Abstract

In this paper, theoretical and numerical studies of perfect/nearly-perfect conversion of a plane wave into a surface wave are presented. The problem of determining the electromagnetic properties of an inhomogeneous lossless boundary which would fully transform an incident plane wave into a surface wave propagating along the boundary is considered. An approximate field solution which produces a slowly growing surface wave and satisfies the energy conservation law is discussed and numerically demonstrated. The results of the study are of great importance for the future development of such devices as perfect leaky-wave antennas and can potentially lead to many novel applications.