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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...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
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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. |
format | Online Article Text |
id | pubmed-6164711 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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 |
work_keys_str_mv | AT shahsyedimranhussain microfluidicallyfrequencyreconfigurablequasiyagidipoleantenna AT limsungjoon microfluidicallyfrequencyreconfigurablequasiyagidipoleantenna |