Space-Frequency Metasurface for Frequency and Function Multiplexing

Zhou He

doi:10.1002/adom.71838

2026-09-24

PRE

DOI：10.1002/adom.71838

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摘要

En 中文

电磁（EM）超表面为操控波的多维度属性（包括幅度、相位和偏振）提供了强大能力。然而，由于系统复杂性和成本问题，实现高效多频复用仍是一大挑战。例如，虽然时空超表面可通过时域调制实现频域控制，但常面临功耗过高、控制电路复杂及硬件开销巨大等问题。受互锁积木模块化组装的启发，我们提出一种空间-频率超表面范式用于频率复用。通过引入空间稀疏性和几何周期性作为新的自由度，可实现低复杂度、低成本的多频复用。研究表明，超表面的电磁性能对阵列稀疏化具有鲁棒性，从而释放空间容量以交织不同周期性的异质超原子。受其独特空间周期性支配，这些维度缩放的超原子被设计为独立调控多个频段，且具有低频间串扰。为展示该平台的通用性，我们实现了一个集成传感与通信平台，同时实现无线数据传输和非接触生命体征监测。这为多功能电磁材料的发展提供了模板，并为材料科学与现代信息技术的跨学科融合奠定了坚实的概念基础。

Keyword:

integrated sensing and communication

metasurface

space-frequency multiplexing

sparsity

期刊

Advanced Optical Materials

IF:

7.2

论文数:

8.9K

被引数:

4.6W

机构

Southeast University

学者数:

3.4K

论文数: 1.1K

被引数: 0

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