A Pixel-based Reconfigurable Antenna Design for Fluid Antenna Systems

TL;DR

This paper introduces a pixel-based reconfigurable antenna design for Fluid Antenna Systems, achieving fast switching speeds and multiple ports, validated through simulation and experiments at 2.5 GHz.

Contribution

The paper presents a novel pixel-based reconfigurable antenna design that enhances FAS performance with rapid switching and multiple ports.

Findings

Supports 12 ports within half wavelength

Achieves low port correlation and matched impedance

Validated through simulation and experimental results

Abstract

Fluid Antenna Systems (FASs) have recently been proposed for enhancing the performance of wireless communication. Previous antenna designs to meet the requirements of FAS have been based on mechanically movable or liquid antennas and therefore have limited reconfiguration speeds. In this paper, we propose a design for a pixel-based reconfigurable antenna (PRA) that meets the requirements of FAS and the required switching speed. It can provide 12 FAS ports across 1/2 wavelength and consists of an E-slot patch antenna and an upper reconfigurable pixel layer with 6 RF switches. Simulation and experimental results from a prototype operating at 2.5 GHz demonstrate that the design can meet the requirements of FAS including port correlation with matched impedance.