太赫兹通信的波束操控：一种新的优质生产力
Beam Manipulation for Terahertz Communications: A New Quality Productive Force
AI总结：
本文综述太赫兹通信中的波束操控技术，基于衍射理论提出针对近场与远场的操控方法，并通过3-D打印透镜实验验证三种案例，同时探讨超表面等替代方案。
摘要：
太赫兹频段（范围从0.1到10 THz）为下一代无线通信系统提供了丰富的频谱资源。为了补偿太赫兹收发器有限的传输功率以及太赫兹信道中显著的传播损耗，高增益定向天线是必不可少的。因此，动态波束操控对于实现实际通信应用至关重要。此外，太赫兹系统中严格的增益要求导致菲涅尔区域扩大，凸显了在近场和远场条件下高效波束操控技术的迫切需求。本文全面概述了太赫兹波束操控技术。首先介绍了衍射理论作为波束操控的基础传播模型。然后针对特定通信场景给出了详细示例。文中包含了使用3-D打印透镜对三种不同波束操控案例进行的实验验证。最后简要讨论了实现波束操控的其他方法，如超表面和可重构智能表面。
英文摘要：
The terahertz frequency band, ranging from 0.1 to 10 THz, offers extensive spectral resources for next-generation wireless communication systems. To compensate for the limited transmission power of terahertz transceivers and the significant propagation losses in terahertz channels, high-gain directional antennas are essential. Dynamic beam manipulation is therefore crucial for enabling practical communication applications. Moreover, the stringent gain requirements in terahertz systems result in an expanded Fresnel region, highlighting the critical need for efficient beam manipulation techniques in both near-field and far-field conditions. This article provides a comprehensive overview of terahertz beam manipulation techniques. It begins with an introduction of diffraction theory as the foundational propagation model for beam manipulation. Detailed examples tailored to specific communication scenarios are then presented. Experimental verifications using 3-D printed lenses are included for three distinct beam manipulation cases. Alternative approaches for achieving beam manipulation, such as metasurfaces and reconfigurable intelligent surfaces, are briefly discussed.
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。
