Cargando…

Direct laser-patterned ultra-wideband antennae with carbon nanotubes

Ultra-wideband (UWB), a radio transmission technology with wide bandwidth exceeding the minimum of 500 MHz or at least 20% of the center frequency, is a revolutionary approach for short-range high-bandwidth wireless communication. In this study, carbon nanotube (CNT) UWB antennas by direct laser-pat...

Descripción completa

Detalles Bibliográficos
Autores principales: Qiu, Haochuan, Liu, Houfang, Jia, Xiufeng, Liu, Xiao, Li, Yuxing, Feng, Jiafeng, Wei, Hongxiang, Yang, Yi, Ren, Tian-ling
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9085915/
https://www.ncbi.nlm.nih.gov/pubmed/35548222
http://dx.doi.org/10.1039/c8ra07173j
_version_ 1784703923625394176
author Qiu, Haochuan
Liu, Houfang
Jia, Xiufeng
Liu, Xiao
Li, Yuxing
Feng, Jiafeng
Wei, Hongxiang
Yang, Yi
Ren, Tian-ling
author_facet Qiu, Haochuan
Liu, Houfang
Jia, Xiufeng
Liu, Xiao
Li, Yuxing
Feng, Jiafeng
Wei, Hongxiang
Yang, Yi
Ren, Tian-ling
author_sort Qiu, Haochuan
collection PubMed
description Ultra-wideband (UWB), a radio transmission technology with wide bandwidth exceeding the minimum of 500 MHz or at least 20% of the center frequency, is a revolutionary approach for short-range high-bandwidth wireless communication. In this study, carbon nanotube (CNT) UWB antennas by direct laser-patterning technology have been successfully designed, fabricated and characterized. In contrast with traditional fabrication methods, the direct laser-patterning technology offers an exceptional potential for custom-designed, high-complexity and accuracy device fabrication. The “engraving” process on CNTs exposed to laser can be attributed to the bond breaking of C–C, evaporation of carbon atoms, and oxidation of CNTs by the oxygen molecules. Numerical analysis and experimental studies provide characteristics of CNT slot antennas with a wide impedance bandwidth (from 3.4 GHz to 14 GHz for S(11) ≤ −10 dB), high average radiation efficiency (76%) and fractional bandwidth (121%) with small size of 30 × 30 mm(2). The results indicate the advantages of laser-patterned UWB antennas based on carbon nanotubes, which paves the way for industrial applications, particularly in the world of consumer electronics.
format Online
Article
Text
id pubmed-9085915
institution National Center for Biotechnology Information
language English
publishDate 2018
publisher The Royal Society of Chemistry
record_format MEDLINE/PubMed
spelling pubmed-90859152022-05-10 Direct laser-patterned ultra-wideband antennae with carbon nanotubes Qiu, Haochuan Liu, Houfang Jia, Xiufeng Liu, Xiao Li, Yuxing Feng, Jiafeng Wei, Hongxiang Yang, Yi Ren, Tian-ling RSC Adv Chemistry Ultra-wideband (UWB), a radio transmission technology with wide bandwidth exceeding the minimum of 500 MHz or at least 20% of the center frequency, is a revolutionary approach for short-range high-bandwidth wireless communication. In this study, carbon nanotube (CNT) UWB antennas by direct laser-patterning technology have been successfully designed, fabricated and characterized. In contrast with traditional fabrication methods, the direct laser-patterning technology offers an exceptional potential for custom-designed, high-complexity and accuracy device fabrication. The “engraving” process on CNTs exposed to laser can be attributed to the bond breaking of C–C, evaporation of carbon atoms, and oxidation of CNTs by the oxygen molecules. Numerical analysis and experimental studies provide characteristics of CNT slot antennas with a wide impedance bandwidth (from 3.4 GHz to 14 GHz for S(11) ≤ −10 dB), high average radiation efficiency (76%) and fractional bandwidth (121%) with small size of 30 × 30 mm(2). The results indicate the advantages of laser-patterned UWB antennas based on carbon nanotubes, which paves the way for industrial applications, particularly in the world of consumer electronics. The Royal Society of Chemistry 2018-09-05 /pmc/articles/PMC9085915/ /pubmed/35548222 http://dx.doi.org/10.1039/c8ra07173j Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Qiu, Haochuan
Liu, Houfang
Jia, Xiufeng
Liu, Xiao
Li, Yuxing
Feng, Jiafeng
Wei, Hongxiang
Yang, Yi
Ren, Tian-ling
Direct laser-patterned ultra-wideband antennae with carbon nanotubes
title Direct laser-patterned ultra-wideband antennae with carbon nanotubes
title_full Direct laser-patterned ultra-wideband antennae with carbon nanotubes
title_fullStr Direct laser-patterned ultra-wideband antennae with carbon nanotubes
title_full_unstemmed Direct laser-patterned ultra-wideband antennae with carbon nanotubes
title_short Direct laser-patterned ultra-wideband antennae with carbon nanotubes
title_sort direct laser-patterned ultra-wideband antennae with carbon nanotubes
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9085915/
https://www.ncbi.nlm.nih.gov/pubmed/35548222
http://dx.doi.org/10.1039/c8ra07173j
work_keys_str_mv AT qiuhaochuan directlaserpatternedultrawidebandantennaewithcarbonnanotubes
AT liuhoufang directlaserpatternedultrawidebandantennaewithcarbonnanotubes
AT jiaxiufeng directlaserpatternedultrawidebandantennaewithcarbonnanotubes
AT liuxiao directlaserpatternedultrawidebandantennaewithcarbonnanotubes
AT liyuxing directlaserpatternedultrawidebandantennaewithcarbonnanotubes
AT fengjiafeng directlaserpatternedultrawidebandantennaewithcarbonnanotubes
AT weihongxiang directlaserpatternedultrawidebandantennaewithcarbonnanotubes
AT yangyi directlaserpatternedultrawidebandantennaewithcarbonnanotubes
AT rentianling directlaserpatternedultrawidebandantennaewithcarbonnanotubes