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Nano-rectenna powered body-centric nanonetworks in the terahertz band
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Rong, Zichao, Leeson, Mark S., Higgins, Matthew D. and Lu, Yi (2018) Nano-rectenna powered body-centric nanonetworks in the terahertz band. Healthcare Technology Letters, 5 (4). pp. 113-117. doi:10.1049/htl.2017.0034
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Official URL: http://doi.org/10.1049/htl.2017.0034
Abstract
A wireless body-centric nanonetwork 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 realized 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. We 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 nanonetworks.
| Item Type: | Journal Article | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||||||
| Divisions: | Faculty of Science > Engineering | ||||||||
| Library of Congress Subject Headings (LCSH): | Terahertz technology, Wireless sensor networks, Nanotechnology, Nanonetworks | ||||||||
| Journal or Publication Title: | Healthcare Technology Letters | ||||||||
| Publisher: | The Institution of Engineering and Technology | ||||||||
| ISSN: | 2053-3713 | ||||||||
| Official Date: | August 2018 | ||||||||
| Dates: |
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| Volume: | 5 | ||||||||
| Number: | 4 | ||||||||
| Page Range: | pp. 113-117 | ||||||||
| DOI: | 10.1049/htl.2017.0034 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Open Access | ||||||||
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