Design and Channel Modeling of Electromagnetically Reconfigurable Antennas

TL;DR

This paper introduces a novel electromagnetically reconfigurable antenna design based on fluid antenna systems, along with a new wireless channel model, demonstrating improved gain through reconfigurability and simulation validation.

Contribution

The paper presents a new fluid antenna-based reconfigurable antenna design and develops a corresponding wireless channel model, advancing antenna flexibility and performance modeling.

Findings

Achieved 2.5 dB gain enhancement at a specific beamforming direction.

Validated the antenna design and channel model through full-wave simulations.

Demonstrated electromagnetic reconfigurability as a means to improve wireless system performance.

Abstract

In this work, a novel design of electromagnetically reconfigurable antennas (ERAs) based on a fluid antenna system (FAS) is proposed, and the corresponding wireless channel model is established. Different from conventional antenna arrays with static elements, the electromagnetic characteristics of each array element in the proposed ERA can be flexibly reconfigured into various states, introducing electromagnetic degrees of freedom to enhance wireless system performance. Based on the proposed ERA design, the corresponding channel model is developed. Finally, full-wave simulations are conducted to validate the overall design concept. The results reveal that a gain enhancement of 2.5 dB is achieved at a beamforming direction.