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Microfluidically Frequency-Reconfigurable Quasi-Yagi Dipole Antenna

In this paper, a frequency reconfigurable quasi-Yagi dipole antenna is proposed by leveraging the properties of microfluidic technology. The proposed antenna comprises a metal-printed driven dipole element and three directors. To tune resonant frequencies, microfluidic channels are integrated into t...

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Detalles Bibliográficos
Autores principales: Shah, Syed Imran Hussain, Lim, Sungjoon
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6164711/
https://www.ncbi.nlm.nih.gov/pubmed/30181435
http://dx.doi.org/10.3390/s18092935
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author Shah, Syed Imran Hussain
Lim, Sungjoon
author_facet Shah, Syed Imran Hussain
Lim, Sungjoon
author_sort Shah, Syed Imran Hussain
collection PubMed
description In this paper, a frequency reconfigurable quasi-Yagi dipole antenna is proposed by leveraging the properties of microfluidic technology. The proposed antenna comprises a metal-printed driven dipole element and three directors. To tune resonant frequencies, microfluidic channels are integrated into the driven element. To maintain a high gain for all the tuned frequencies, microfluidic channels are also integrated into the directors. Therefore, the length of the driven-element as well as directors can be controlled by injecting liquid metal in the microfluidic channels. The proposed antenna has the capability of tuning the frequency by varying the length of the metal-filled channels, while maintaining a high gain for all the tuned frequencies. The proposed antenna’s performance is experimentally demonstrated after fabrication. The injected amount of liquid metal into the microfluidic channels is controlled using programmable pneumatic micropumps. The prototype exhibits continuous tuning of the resonant frequencies from 1.8 GHz to 2.4 GHz; the measured peak gain of the proposed antenna is varied in the range of 8 dBi to 8.5 dBi. Therefore, continuous tuning with high gain is successfully demonstrated using liquid-metal-filled microfluidic channels.
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spelling pubmed-61647112018-10-10 Microfluidically Frequency-Reconfigurable Quasi-Yagi Dipole Antenna Shah, Syed Imran Hussain Lim, Sungjoon Sensors (Basel) Article In this paper, a frequency reconfigurable quasi-Yagi dipole antenna is proposed by leveraging the properties of microfluidic technology. The proposed antenna comprises a metal-printed driven dipole element and three directors. To tune resonant frequencies, microfluidic channels are integrated into the driven element. To maintain a high gain for all the tuned frequencies, microfluidic channels are also integrated into the directors. Therefore, the length of the driven-element as well as directors can be controlled by injecting liquid metal in the microfluidic channels. The proposed antenna has the capability of tuning the frequency by varying the length of the metal-filled channels, while maintaining a high gain for all the tuned frequencies. The proposed antenna’s performance is experimentally demonstrated after fabrication. The injected amount of liquid metal into the microfluidic channels is controlled using programmable pneumatic micropumps. The prototype exhibits continuous tuning of the resonant frequencies from 1.8 GHz to 2.4 GHz; the measured peak gain of the proposed antenna is varied in the range of 8 dBi to 8.5 dBi. Therefore, continuous tuning with high gain is successfully demonstrated using liquid-metal-filled microfluidic channels. MDPI 2018-09-04 /pmc/articles/PMC6164711/ /pubmed/30181435 http://dx.doi.org/10.3390/s18092935 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Shah, Syed Imran Hussain
Lim, Sungjoon
Microfluidically Frequency-Reconfigurable Quasi-Yagi Dipole Antenna
title Microfluidically Frequency-Reconfigurable Quasi-Yagi Dipole Antenna
title_full Microfluidically Frequency-Reconfigurable Quasi-Yagi Dipole Antenna
title_fullStr Microfluidically Frequency-Reconfigurable Quasi-Yagi Dipole Antenna
title_full_unstemmed Microfluidically Frequency-Reconfigurable Quasi-Yagi Dipole Antenna
title_short Microfluidically Frequency-Reconfigurable Quasi-Yagi Dipole Antenna
title_sort microfluidically frequency-reconfigurable quasi-yagi dipole antenna
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6164711/
https://www.ncbi.nlm.nih.gov/pubmed/30181435
http://dx.doi.org/10.3390/s18092935
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