On Surface Wave Propagation Characteristics of Porosity-Based Reconfigurable Surface

TL;DR

This paper investigates how porosity patterns in reconfigurable surfaces influence wave propagation and signal fluctuation at microwave frequencies, with potential applications in advanced wireless communication systems.

Contribution

It introduces a porosity-based reconfigurable surface with fluid-metal cavities and analyzes the impact of different porosity patterns on wave diffraction and signal fluctuation.

Findings

Porosity patterns significantly affect wave diffraction.

Signal fluctuation varies with porosity configuration.

Effective control of wave propagation demonstrated in 21.7-31.6GHz range.

Abstract

Reconfigurable surfaces facilitating energy-efficient, intelligent surface wave propagation have recently emerged as a technology that finds applications in many-core systems and 6G wireless communications. In this paper, we consider the porosity-based reconfigurable surface where there are cavities that can be filled on-demand with fluid metal such as Galinstan, in order to create adaptable channels for efficient wave propagation. We aim to investigate the propagation phenomenon of signal fluctuation resulting from the diffraction of discrete porosity and study how different porosity patterns affect this phenomenon. Our results cover the frequency range between 21.7GHz and 31.6GHz when a WR-34 waveguide is used as the transducer.