Riaz Asad, Khan Sagheer, Arslan Tughrul
School of Engineering, The University of Edinburgh, Edinburgh EH9 3FF, UK.
Micromachines (Basel). 2023 Mar 6;14(3):610. doi: 10.3390/mi14030610.
Arguably, 5G and next-generation technology with its key features (specifically, supporting high data rates and high mobility platforms) make it valuable for coping with the emerging needs of medical healthcare. A 5G-enabled portable device receives the sensitive detection signals from the head imaging system and transmits them over the 5G network for real-time monitoring, analysis, and storage purposes. In terms of material, graphene-based flexible electronics have become very popular for wearable and healthcare devices due to their exceptional mechanical strength, thermal stability, high electrical conductivity, and biocompatibility. A graphene-based flexible antenna for data communication from wearable head imaging devices over a 5G network was designed and modelled. The antenna operated at the 34.5 GHz range and was designed using an 18 µm thin graphene film for the conductive radiative patch and ground with electric conductivity of 3.5 × 10 S/m. The radiative patch was designed in a fractal fashion to provide sufficient antenna flexibility for wearable uses. The patch was designed over a 1.5 mm thick flexible polyamide substrate that made the design suitable for wearable applications. This paper presented the 3D modelling and analysis of the 5G flexible antenna for communication in a digital care-home model. The analyses were carried out based on the antenna's reflection coefficient, gain, radiation pattern, and power balance. The time-domain signal analysis was carried out between the two antennas to mimic real-time communication in wearable devices.
可以说，5G以及具有其关键特性（特别是支持高数据速率和高移动性平台）的下一代技术，使其在应对医疗保健领域不断出现的需求方面具有重要价值。一个支持5G的便携式设备从头部成像系统接收敏感检测信号，并通过5G网络传输这些信号，以用于实时监测、分析和存储目的。在材料方面，基于石墨烯的柔性电子产品因其卓越的机械强度、热稳定性、高导电性和生物相容性，在可穿戴和医疗保健设备中变得非常受欢迎。设计并建模了一种用于通过5G网络从可穿戴头部成像设备进行数据通信的基于石墨烯的柔性天线。该天线在34.5 GHz频段工作，使用18 µm厚的石墨烯薄膜设计导电辐射贴片和接地，电导率为3.5×10 S/m。辐射贴片采用分形设计，为可穿戴应用提供足够的天线灵活性。贴片设计在1.5 mm厚的柔性聚酰胺基板上，使该设计适用于可穿戴应用。本文介绍了用于数字护理之家模型通信的5G柔性天线的三维建模与分析。分析基于天线的反射系数、增益、辐射方向图和功率平衡进行。在两个天线之间进行时域信号分析，以模拟可穿戴设备中的实时通信。
