RIS with Nanomaterials for FutureG Applications
RIS with Nanomaterials for FutureG Applications
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DOI：
10.1109/nmdc57951.2023.10343722
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发表时间：
2023-10
期刊：
影响因子：
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通讯作者：
G. Al-Duhni;Tatiana Valera;M. Pulugurtha;John L. Volakis;S. Venkatakrishnan
中科院分区：
文献类型：
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作者：
G. Al-Duhni;Tatiana Valera;M. Pulugurtha;John L. Volakis;S. Venkatakrishnan
可重构智能表面（RIS）也称为智能反射表面（IRS），通常依赖于元表面。这些通常包括无源元件的大阵列，可以制造这些无源元件以调制反射幅度或相位或两者，以创建独立控制的可调谐功能。开发了各种RIS以通过超宽带天线、具有更高增益和带宽的增强波束成形、空间可重构性、选择性和可调节隔离以及其他期望特征来提高频谱效率。目前正在探讨调整区域信息系统性能的几种方法。本文综述了实现这种RIS功能的主要方法和新兴的可调纳米材料的好处。第一部分讨论了1位和6位移相器的设计。各种机会与纳米材料和纳米器件诱导这种相移的文件的最后一部分进行了讨论。
Reconfigurable Intelligent Surfaces (RIS) also known as Intelligent Reflecting Surfaces (IRS) often depend upon metasurfaces. These typically comprise of a large array of passive elements that can be fabricated to modulate reflection amplitude or phase or both to create tunable functions that are independently controlled. Various RIS are developed to improve spectral efficiency through ultrawideband antennas, enhanced beamforming with higher gain and bandwidth, spatial reconfigurability, selective and adjustable isolation, and other desired features. Several approaches to tune the RIS performance are being explored. This paper reviews the primary approaches and the benefit of emerging tunable nanomaterials in achieving such RIS functions. Designs with 1-bit and 6-bit phase shifters are discussed in the first part. Various opportunities with nanomaterials and nanodevices to induce such phase shifts are discussed in the last part of the paper.