Zubair Muhammad, Jabbar Abdul, Tahir Farooq A, Kazim Jalil Ur Rehman, Rehman Masood Ur, Imran Muhammad, Liu Bo, Abbasi Qammer H
James Watt School of Engineering, University of Glasgow, Glasgow, G12 8QQ, UK.
School of Electrical Engineering and Computer Science, National University of Sciences and Technology, Islamabad, Pakistan.
Sci Rep. 2024 Jul 24;14(1):17030. doi: 10.1038/s41598-024-68010-9.
Terahertz (THz) spectral region from 0.1 to 3 THz is envisaged to hold immense potential in the next generation of wireless technologies. Recently, research has focused on this terahertz gap, because of its unprecedented channel capacities. At the physical layer, the design complexities and fabrication of THz devices, especially antennas are the prime bottlenecks to realize its full potential. This article introduces a cost-effective, easy-to-fabricate, and reproducible sub-THz antenna design based on a single-layer planar printed circuit board technology. The antenna incorporates carefully designed quasi-cross slots and applied machine learning-assisted global optimization techniques to achieve the desired performance metrics. The antenna performance is elucidated through numerical simulations and verified through a rigorous in-house THz experimental framework around 100-110 GHz. The proposed antenna offers a peak gain of 13.90 dBi with less than 1 dB variation within the entire band of 100-110 GHz. The antenna holds the potential to achieve terabits per second data rates and futuristic high-resolution short-range THz imaging applications.
太赫兹（THz）光谱区域从0.1到3太赫兹被认为在下一代无线技术中具有巨大潜力。最近，由于其前所未有的信道容量，研究集中在这个太赫兹频段。在物理层，太赫兹设备尤其是天线的设计复杂性和制造是实现其全部潜力的主要瓶颈。本文介绍了一种基于单层平面印刷电路板技术的经济高效、易于制造且可重复的亚太赫兹天线设计。该天线采用精心设计的准交叉缝隙，并应用机器学习辅助全局优化技术来实现所需的性能指标。通过数值模拟阐明天线性能，并通过围绕100 - 110GHz的严格内部太赫兹实验框架进行验证。所提出的天线在100 - 110GHz的整个频段内提供13.90dBi的峰值增益，变化小于1dB。该天线有潜力实现每秒太比特的数据速率以及未来的高分辨率短程太赫兹成像应用。
