论文标题

可重新配置可穿戴天线,用于使用列液晶的5G应用

Reconfigurable Wearable Antenna for 5G Applications using Nematic Liquid Crystals

论文作者

Xia, Yuanjie, Yuan, Mengyao, Dobrea, Alexandra, Li, Chong, Heidari, Hadi, Mottram, Nigel, Ghannam, Rami

论文摘要

天线是许多可穿戴电子设备的关键构建块之一,其功能包括无线通信,能量收集和辐射无线功率传输(WPT)。为了实现轻巧,自主和无电池可穿戴设备,我们为5G可穿戴应用的可重构天线设计展示了需要超低驾驶电压($ 0.4 $ - $ 0.6 \,$ V),并在高频范围内运行($ 3.3 $ - $ 3.8 $ 3.8 \,$ ghz)。对于智能眼镜应用,以前的天线设计被“固定”,并安装在眼镜框架上。在这里,我们使用各向异性液晶(LC)材料展示了可以在镜头本身上实现的可重构设计。我们展示了LC对齐和电场模式如何在Gigahertz范围内强烈影响这些天线的调整功能,并呈现具有LC底物的智能,可重构的螺旋天线系统。

The antenna is one of the key building blocks of many wearable electronic device, and its functions include wireless communications, energy harvesting and radiative wireless power transfer (WPT). In an effort to realise lightweight, autonomous and battery-less wearable devices, we demonstrate a reconfigurable antenna design for 5G wearable applications that require ultra-low driving voltages ($0.4$-$0.6\,$V) and operate over a high frequency range ($3.3$-$3.8\,$GHz). For smart glasses application, previous antenna designs were `fixed' and mounted on the eyeglass frame itself. Here, we demonstrate a reconfigurable design that could be achieved on the lens itself, using an anisotropic liquid crystal (LC) material. We demonstrate how LC alignment and electric field patterns strongly influence the tuning capabilities of these antennas in the gigahertz range and present a smart, reconfigurable spiral antenna system with a LC substrate.

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