Space-Wave Routing via Surface Waves Using a Metasurface System

TL;DR

This paper presents a metasurface system capable of routing space waves through surface waves, with synthesis techniques and experimental verification, enabling beam modulation and potential applications like beam expansion and multi-wave refraction.

Contribution

It introduces a novel metasurface-based method for space wave routing via surface waves, including two synthesis techniques and experimental validation.

Findings

Successful experimental verification in an electromagnetic periscope

Effective beam modulation through lateral shifting and width modulation

Potential applications demonstrated as beam expander and multi-wave refractor

Abstract

We introduce the concept of a metasurface system able to route space wave via surface waves. This concept may be used to laterally shift or modulate the beam width of scattered waves. We propose two corresponding synthesis techniques, one that is exact but leads to practically challenging material parameters and one that is approximate but leads to simpler material parameters. The concept is experimentally verified in an electromagnetic periscope. Additionally, we propose two other potential applications namely a beam expander and a multi-wave refractor.