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真实数据驱动的实时可重新配置的微波反射表面.

Erda Wen1, Xiaozhen Yang2, Daniel F Sievenpiper2

  • 1Department of ECE, University of California San Diego, La Jolla, CA, USA. ewen@ucsd.edu.

Nature communications
|November 25, 2023
PubMed
概括

研究人员开发了一种可重新配置的超表面,由神经网络控制,用于动态电磁 (EM) 散射控制. 这种数据驱动的方法提供了与低计算成本的多功能反射模式操纵.

科学领域:

  • 电磁学 电磁学 电磁学 电磁学
  • 材料科学 材料科学 材料科学
  • 人工智能的人工智能

背景情况:

  • 控制来自表面的电磁 (EM) 散射以动态的方式进行隐形和通信是传统方法的挑战.
  • 现有的技术与任意的设计目标和现实世界的复杂性作斗争.

研究的目的:

  • 介绍一个可重新配置的合规超表面原型和动态EM散射控制的工作流程.
  • 为了实现对多个设计目标的响应,在现场计算能力和时间较低.

主要方法:

  • 开发了一种可重新配置的合规超表面原型.
  • 一个顺序串联的神经网络,预先训练了实验数据,驱动了 metasurface.
  • 采用数据驱动的工作流程,尽量减少先前的知识和人类的努力.

主要成果:

  • 超表面证明了对EM反射模式的动态控制.
  • 该系统在复杂的环境中准确运行,发生角度和频率各不相同.
  • 需要低的现场计算能力和时间才能运行.

结论:

  • 拟议的平台在反射控制方面提供了最大的多功能性,朝着智能可调 EM 表面迈进.

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  • 数据驱动的方法克服了传统模拟和优化技术的局限性.
  • 这项技术对EM隐形和通信应用有重大影响.