可重构智能表面在工业自动化中的应用：毫米波传播测量、仿真与控制算法要求
Reconfigurable Intelligent Surface for Industrial Automation: mmWave Propagation Measurement, Simulation, and Control Algorithm Requirements
AI总结：
本文提出了一种主动式RIS，通过127个贴片天线元件和正交极化变换实现放大，测量验证了其在工业场景中聚焦信号的能力，并获得了移动UE的配置更新准则。
摘要：
可重构智能表面（RIS）能够在在基站（BS）与用户设备（UE）之间存在视距（LoS）阻塞时情况下，能够实现可靠低延迟的毫米波（mmWave）通信链路，例如，安装在墙壁或天花板上的RIS可以为无线电通信链路提供旁路。我们提出了一种主动式RIS，包含127个贴片天线元件，以六边形网格排列，中心频率为23.8 GHz。。每个RIS元件采用正交极化变换，通过场效应晶体管（FET）实现放大。每个FET的源极和漏极电压由2比特控制。我们假设在工业控制场景中UE的坐标对RIS已知。。我们测量了RIS在反射和主动模式下在6022网格（60 cm×100 cm）上接收到的功率。结果表明，RIS可以成功地将无线电信号聚焦在期望的目标点。半功率波束宽度在轴向和径向（相对于RIS位置）上进行了表征，获得了移动UE的实用RIS配置更新准则。这些结果清楚地表明，RIS是实现在室内工业场景中实现可靠无线通信的突出解决方案。。
英文摘要：
Reconfigurable intelligent surfaces (RISs) enable reliable low-latency millimeter wave (mmWave) communication links in cases of a blocked line-of-sight (LoS) between the base station (BS) and the user equipment (UE), i.e. a RIS mounted on a wall or the ceiling provides a bypass for the radio communication link. We present an active RIS with 127 patch antenna elements arranged in a hexagonal grid for a center frequency of 23.8 GHz. Each RIS element uses an orthogonal polarization transformation to enable amplification using a field-effect transistor (FET). The source and drain voltages of each FET is controlled using two bits. We assume that the coordinates of the UE in an industrial control scenario are known to the RIS. We measure the received power on a 2D grid of 60 cm by 100 cm with the RIS working in reflective and active mode. The results show that the RIS can successfully focus the radio signal at the desired target points. The half-power beam width is characterized in axial and radial directions with respect to the RIS position, obtaining a practical RIS configuration update criterion for a mobile UE. These results clearly show that RISs are prominent solutions for enabling reliable wireless communication in indoor industrial scenarios.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
