An Ultrawideband 1-Bit Suspended Reconfigurable Intelligent Surface for Enhancing Wireless Coverage

IF 4.8 2区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Antennas and Wireless Propagation Letters Pub Date : 2024-09-12 DOI:10.1109/LAWP.2024.3460398

Hongyu Shi;Rui Liu;Ziyang Zhang;Xiaoming Chen;Luyi Wang;Jianjia Yi;Haiwen Liu;Anxue Zhang

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Abstract

This letter proposes an ultrawideband 1-bit suspended reconfigurable intelligent surface (RIS) designed to enhance the signal coverage of wireless communication networks. The RIS unit cell comprises two metal gratings connected via a PIN diode, a dielectric-air-dielectric interlayer, and a metal reflective layer. The RIS achieves a stable reflection phase difference of 180° ± 30° between the on and off states of the PIN diode within the ultrawideband range of 2.75 GHz to 6 GHz. This range includes the 3.4 GHz and 4.9 GHz bands for 5G communication, the 5.2 GHz band for indoor wireless communication, and the 5.8 GHz band for Wi-Fi and Bluetooth signals. A prototype, consisting of 20 × 20 unit cells, was fabricated and measured, demonstrating two-dimensional wide-angle beam scanning of ± 60° within the working frequency range. Furthermore, a RIS-assisted wireless communication system was constructed, confirming that deploying RIS can significantly enhance communication quality in targeted areas by transmitting and receiving image information at different frequencies. The proposed RIS holds substantial potential for RIS-assisted wireless communication systems.

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用于增强无线覆盖的超宽带 1 位悬浮式可重构智能表面

这封信提出了一种超宽带1位悬浮可重构智能表面（RIS），旨在增强无线通信网络的信号覆盖。RIS单元电池包括通过PIN二极管、介电-空气-介电中间层和金属反射层连接的两个金属光栅。RIS在2.75 GHz至6 GHz的超宽带范围内实现了PIN二极管导通和关断状态之间180°±30°的稳定反射相位差。该范围包括用于5G通信的3.4 GHz和4.9 GHz频段，用于室内无线通信的5.2 GHz频段，以及用于Wi-Fi和蓝牙信号的5.8 GHz频段。制作了一个由20 × 20个单元组成的原型，并进行了测量，在工作频率范围内实现了±60°的二维广角波束扫描。构建了RIS辅助无线通信系统，验证了部署RIS可以通过不同频率的图像信息收发，显著提高目标区域的通信质量。所提出的RIS具有RIS辅助无线通信系统的巨大潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Antennas and Wireless Propagation Letters 工程技术-电信学

CiteScore

8.00

自引率

9.50%

发文量

529

审稿时长

1.0 months

期刊介绍： IEEE Antennas and Wireless Propagation Letters (AWP Letters) is devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation. These are areas of competence for the IEEE Antennas and Propagation Society (AP-S). AWPL aims to be one of the "fastest" journals among IEEE publications. This means that for papers that are eventually accepted, it is intended that an author may expect his or her paper to appear in IEEE Xplore, on average, around two months after submission.