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太赫兹频段中由纳米整流天线供电的以身体为中心的纳米网络。

Nano-rectenna powered body-centric nano-networks in the terahertz band.

作者信息

Rong Zhichao, Leeson Mark S, Higgins Matthew D, Lu Yi

机构信息

School of Engineering, University of Warwick, Coventry CV4 7AL, UK.

WMG, University of Warwick, Coventry CV4 7AL, UK.

出版信息

Healthc Technol Lett. 2018 Jul 13;5(4):113-117. doi: 10.1049/htl.2017.0034. eCollection 2018 Aug.

DOI:10.1049/htl.2017.0034
PMID:30155262
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6103786/
Abstract

A wireless body-centric nano-network consists of various nano-sized sensors with the purpose of healthcare application. One of the main challenges in the network is caused by the very limited power that can be stored in nano-batteries in comparison with the power required to drive the device for communications. Recently, novel rectifying antennas (rectennas) based on carbon nanotubes (CNTs), metal and graphene have been proposed. At the same time, research on simultaneous wireless information and power transfer (SWIPT) schemes has progressed apace. Body-centric nano-networks can overcome their energy bottleneck using these mechanisms. In this Letter, a nano-rectenna energy harvesting model is developed. The energy harvesting is realised by a nano-antenna and an ultra-high-speed rectifying diode combined as a nano-rectenna. This device can be used to power nanosensors using part of the terahertz (THz) information signal without any other system external energy source. The broadband properties of nano-rectennas enable them to generate direct current (DC) electricity from inputs with THz to optical frequencies. The authors calculate the output power generated by the nano-rectenna and compare this with the power required for nanosensors to communicate in the THz band. The calculation and analysis suggest that the nano-rectenna can be a viable approach to provide power for nanosensors in body-centric nano-networks.

摘要

以身体为中心的无线纳米网络由各种纳米尺寸的传感器组成，用于医疗保健应用。该网络面临的主要挑战之一是，与驱动设备进行通信所需的功率相比，纳米电池能够存储的功率非常有限。最近，基于碳纳米管（CNT）、金属和石墨烯的新型整流天线（整流天线）被提出。与此同时，同时进行无线信息与功率传输（SWIPT）方案的研究也在迅速发展。以身体为中心的纳米网络可以利用这些机制克服其能量瓶颈。在这封信中，开发了一种纳米整流天线能量收集模型。能量收集通过将纳米天线和超高速整流二极管组合成纳米整流天线来实现。该设备可用于利用太赫兹（THz）信息信号的一部分为纳米传感器供电，而无需任何其他系统外部能源。纳米整流天线的宽带特性使其能够从太赫兹到光频率的输入中产生直流电（DC）。作者计算了纳米整流天线产生的输出功率，并将其与纳米传感器在太赫兹频段通信所需的功率进行了比较。计算和分析表明，纳米整流天线可以成为为以身体为中心的纳米网络中的纳米传感器提供功率的可行方法。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d99/6103786/e5cf2166e701/HTL.2017.0034.08.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d99/6103786/579bd1dc3fd9/HTL.2017.0034.01.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d99/6103786/256bae794286/HTL.2017.0034.02.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d99/6103786/f88a1e100db3/HTL.2017.0034.03.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d99/6103786/c4f7c426f1bc/HTL.2017.0034.04.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d99/6103786/9ebd1157b089/HTL.2017.0034.05.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d99/6103786/7ee6d07b20fc/HTL.2017.0034.06.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d99/6103786/57bf8d91ec15/HTL.2017.0034.07.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d99/6103786/e5cf2166e701/HTL.2017.0034.08.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d99/6103786/579bd1dc3fd9/HTL.2017.0034.01.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d99/6103786/256bae794286/HTL.2017.0034.02.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d99/6103786/f88a1e100db3/HTL.2017.0034.03.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d99/6103786/c4f7c426f1bc/HTL.2017.0034.04.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d99/6103786/9ebd1157b089/HTL.2017.0034.05.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d99/6103786/7ee6d07b20fc/HTL.2017.0034.06.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d99/6103786/57bf8d91ec15/HTL.2017.0034.07.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3d99/6103786/e5cf2166e701/HTL.2017.0034.08.jpg

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