面向多智能体通信与空间感知的频域太赫兹收发芯片
A Frequency-Space Terahertz Transceiver Chip for Multi-Agent Communications and Spatial Awareness
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中文总结 AI 辅助
该研究开发了一款208-258GHz的65nm CMOS太赫兹收发芯片，通过异质漏波超表面实现频率控制波束扫描，支持多智能体通信与空间感知，为太赫兹具身智能网络提供可扩展硬件平台。
中文摘要 AI 辅助
未来室内具身智能系统需要可扩展的硬件平台，同时支持高容量多智能体连接与相互空间感知。太赫兹（THz）频谱具备丰富带宽与固有空间选择性，适用于集成传感与通信（ISAC）；但常规相控阵与可编程超表面依赖密集波束成形网络、单元级控制或外部太赫兹照明，难以实现可扩展多波束操作。本文报道一款完全集成的208-258GHz 65nm CMOS太赫兹收发芯片，在1.5mm×4.9mm面积内单片集成宽带前端与异质漏波超表面（HLM）孔径。HLM产生强色散漏模，仅用4个超原子即可实现75度频率控制波束扫描。频域与空域混频的协同设计为空间频分多址（SFDMA）通信实现了频谱纯净的频空映射。该太赫兹芯片演示了多智能体同时收发、二维定位及传感增强通信，为未来太赫兹具身智能网络提供可扩展硬件平台。
英文摘要
Future indoor embodied-intelligence systems require scalable hardware platforms that support both high-capacity multi-agent connectivity and mutual spatial awareness. The terahertz (THz) spectrum offers abundant bandwidth and inherent spatial selectivity for integrated sensing and communication (ISAC); however, conventional phased arrays and programmable metasurfaces rely on dense beamforming networks, element-level control, or external THz illumination, making scalable multibeam operation challenging. Here, we report a fully integrated 208-258GHz 65-nm CMOS THz transceiver chip that monolithically integrates broadband front ends with heterogeneous leaky-wave metasurface (HLM) apertures within a 1.5mm by 4.9mm area. The HLM generates strongly dispersive leaky modes, enabling 75 degree frequency-controlled beam scanning with only four meta-atoms. Co-design of frequency-domain and spatial-domain mixing achieves spectrally clean frequency-to-space mapping for spatial-frequency division multiple access (SFDMA) communication. The THz chip demonstrates multi-agent simultaneous transmission and reception, two-dimensional localization, and sensing-enhanced communication, providing a scalable hardware platform for future THz embodied-intelligence networks.
