夹点天线辅助太赫兹通信：建模与基准测试
Pinching-Antenna-Assisted Terahertz Communications: Modeling and Benchmarking
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中文总结 AI 辅助
研究将夹点天线系统（PASS）扩展到太赫兹频段的建模与性能，开发首个分析框架，整合多种效应，在相同场景下与传统相控阵基准测试，发现其通过接近利用实现频谱效率有效增益，适合特定部署拓扑。
中文摘要 AI 辅助
采用介质波导的夹点天线系统（PASS）最近成为用于高频无线通信的一种很有前景的灵活天线架构。以往工作主要集中在毫米波频段，将PASS扩展到太赫兹（THz）频段会引入不同的电磁现象，使传统建模假设无效。本文为THz - PASS开发了首个分析框架，整合了波导内传播衰减、通过耦合模理论的倏逝耦合以及包括分子吸收及其再辐射噪声在内的太赫兹特定自由空间效应。利用该模型，在相同传播场景下将THz - PASS与传统相控阵进行基准测试。比较评估表明，THz - PASS通过接近利用实现了频谱效率的有效增益，使其特别适合受限和线性部署拓扑结构。
英文摘要
Pinching antenna systems (PASS) employing dielectric waveguides have recently emerged as a promising flexible antenna architecture for high-frequency wireless communications. While prior work has focused primarily on millimeter-wave regimes, extending PASS to the terahertz (THz) band introduces distinct electromagnetic phenomena that invalidate conventional modeling assumptions. This paper develops the first analytical framework for THz-PASS that integrates in-waveguide propagation attenuation, evanescent coupling via coupled-mode theory, and THz-specific free-space effects including molecular absorption and its re-radiation noise. Using this model, we benchmark THz-PASS against conventional phased arrays under identical propagation scenarios. Our comparative evaluation reveals that THz-PASS achieves effective gains in spectral efficiency through proximity exploitation, making it particularly well-suited for confined and linear deployment topologies.
