标题： 太赫兹通信的波束操控：一种新的质量生产力 显示英文标题

标题： Beam Manipulation for Terahertz Communications: A New Quality Productive Force

摘要： 太赫兹频段，从0.1到10 THz，为下一代无线通信系统提供了广泛的频谱资源。 为了补偿太赫兹收发器的有限发射功率和太赫兹信道中的显著传播损耗，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的通信应用至关重要。 此外，太赫兹系统中的严格增益要求导致了扩展的弗雷努尔区域，这突显了在近场和远场条件下对高效波束操控技术的迫切需求。 本文对太赫兹波束操控技术进行了全面概述。 首先介绍了衍射理论作为波束操控的基础传播模型。 然后提供了针对特定通信场景的详细示例。 包括使用3D打印透镜对三种不同的波束操控情况进行实验验证。 还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。 显示英文摘要

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.