基于实时相位优化的光电太赫兹波束跟踪演示

IF 2.3 3区 工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC
Bo Li;Ming Che;Shenghong Ye;Yuya Mikami;Kazutoshi Kato
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引用次数: 0

摘要

为了解决6G太赫兹(THz)通信中的关键波束对准挑战,这封信详细介绍了使用阵列天线实现300 GHz波束跟踪。尽管波束形成效率高,但窄太赫兹波束宽度要求精确对准。我们的系统独特地结合了光学相控阵和基于接收功率反馈优化光束方向的实时算法。通过实验验证了系统的有效性。首先,成功地进行了静态波束优化,实现了11.5 dB的合成增益,接近理论极限。此外,在角速度高达3.58°/s的情况下,在±40°角范围内移动的接收器实现了波束跟踪。在整个跟踪过程中,阵列天线的平均合成增益稳定在9.11 dB。这一成功的演示为增强未来太赫兹移动通信网络所需的鲁棒性和效率提供了可行的途径。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Demonstration of Optoelectronic THz Beam Tracking Using Real-Time Phase Optimization
Addressing the critical beam alignment challenge in Terahertz (THz) communications for 6G, this letter details the implementation of 300 GHz beam tracking using an arrayed antenna. Despite the efficiency of beamforming, narrow THz beamwidth demands precise alignment. Our system uniquely combines an optical phased array with a real-time algorithm that optimizes the beam direction based on received power feedback. We experimentally validated the system’s effectiveness. First, successful static beam optimization was demonstrated, achieving a synthesis gain of 11.5 dB, which approaches the theoretical limit. Furthermore, beam tracking was achieved for a receiver moving within an angular range of ±40° at angular velocities up to 3.58 deg/s. Throughout the tracking process, the arrayed antenna demonstrated a stable mean synthesis gain of 9.11 dB. This successful demonstration provides a viable pathway to enhance the robustness and efficiency required for future THz mobile communication networks.
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来源期刊
IEEE Photonics Technology Letters
IEEE Photonics Technology Letters 工程技术-工程:电子与电气
CiteScore
5.00
自引率
3.80%
发文量
404
审稿时长
2.0 months
期刊介绍: IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.
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