摘要
太赫兹信道传播特性对太赫兹通信系统的设计、评估和优化至关重要。此外, 反射在信道传播中起着重要作用。本文基于大量的信道测量工作, 对太赫兹通道的反射系数进行研究。首先, 建立从220 GHz到320 GHz的太赫兹信道测深平台, 入射角范围从10°到80°。根据实测的传播损耗, 分别计算玻璃、瓷砖、木板、石膏板和铝合金五种建筑材料的频率和入射角的反射系数。研究发现, 由于缺乏与太赫兹相关的参数, 导致非金属材料的菲涅耳模型无法成功地拟合实测数据。因此, 通过改进菲涅耳模型与洛伦兹和德鲁德模型, 提出一个频角二维反射系数模型。该模型表征了反射系数的频率和入射角, 与实测数据的均方根误差较小。总的来说, 这些结果对于太赫兹通道的建模做出贡献。
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Project supported by the National Key R&D Program of China (No. 2020YFB1805002), the National Science Fund for Distinguished Young Scholars (No. 61925102), the National Natural Science Foundation of China (Nos. 62031019, 92167202, and 62101069), and the BUPT-CMCC Joint Innovation Center
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Zhaowei CHANG designed and conducted the research, processed the data, and drafted the paper. Pan TANG, Lei TIAN, Li YU, Guangyi LIU, and Liang XIA revised the paper. Jianhua ZHANG revised and finalized the paper.
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Zhaowei CHANG, Jianhua ZHANG, Pan TANG, Lei TIAN, Li YU, Guangyi LIU, and Liang XIA declare that they have no conflict of interest.
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Chang, Z., Zhang, J., Tang, P. et al. Frequency–angle two-dimensional reflection coefficient modeling based on terahertz channel measurement. Front Inform Technol Electron Eng 24, 626–632 (2023). https://doi.org/10.1631/FITEE.2200290
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DOI: https://doi.org/10.1631/FITEE.2200290