AI 中文总结
研究在无线通信面临诸多限制的背景下，提出基于可穿戴超表面提升无线链路的用户端策略，通过集成于衣物收集电磁波能量导向移动设备，无需外部电源等，显著增加天线有效面积和增益，经实验验证在26GHz处接收信号增强约十倍。
AI 中文摘要
无线通信面临紧凑型用户设备在信号受阻、吸收及设备尺寸受限的传播环境中运行的场景。多数增强无线链路的方法集中于改进基站天线系统或利用可重构智能表面和有源中继改造传播环境。本文提出基于可穿戴超表面的提升无线链路的用户端策略，该超表面集成于衣物，收集人体上入射电磁波的能量并以表面波形式导向移动设备，无需外部电源等即可显著增加设备天线的有效收发面积和增益。通过导电银墨的可扩展丝网印刷工艺在卫衣织物上实现此概念，在26GHz处接收信号增强约十倍。此被动方法将衣物变为虚拟薄且灵活的透镜，有效将人体纳入通信网络。
英文摘要
Wireless communications increasingly face scenarios with compact user equipments operating in propagation environments where signal blockage, absorption, and device size limitations strongly constrain link performance. Most approaches to wireless-link enhancement focus either on improving base-station antenna systems, for example, through massive MIMO architectures; on engineering the propagation environment using reconfigurable intelligent surfaces and active relays. Here, we propose an alternative user-side strategy for improving wireless links based on wearable metasurfaces that enhance the effective antenna area of compact wireless devices. The proposed passive metasurface is integrated into clothing and engineered to collect the power of electromagnetic waves incident on user's body and route the collected power toward a mobile device in the form of surface waves. This mechanism significantly increases the effective receiving and transmitting area of the device antenna and its gain without external power sources, active control electronics, or additional stand-alone hardware. We implement the concept on a hoodie textile using a scalable screen-printing process with conductive silver ink and demonstrate an approximately tenfold enhancement of the received signal at 26 GHz. This passive approach effectively brings the human body into the communication network by turning clothing into a virtual thin and flexible lens for focusing the incident power on the user equipment.
