An Electronically-Tunable, Flexible, and Transparent Antenna With Unidirectional Radiation Pattern

In this paper, a frequency reconfigurable, conformal, durable, optically transparent, and unidirectional antenna design is demonstrated for the first time. In the demonstrated design, continuous frequency tuning is achieved by integrating a varactor diode in a folded dipole radiator, which is backed...

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Autores principales:	Abu Sadat Md. Sayem, Roy B. V. B. Simorangkir, Karu P. Esselle, Dushmantha N. Thalakotuna, Ali Lalbakhsh
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	3-D printing composite conformal folded dipole polymer pure water Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/eab9c7571d9b4b529569923b12e612aa
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spelling	oai:doaj.org-article:eab9c7571d9b4b529569923b12e612aa2021-11-10T00:01:00ZAn Electronically-Tunable, Flexible, and Transparent Antenna With Unidirectional Radiation Pattern2169-353610.1109/ACCESS.2021.3114004https://doaj.org/article/eab9c7571d9b4b529569923b12e612aa2021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9541172/https://doaj.org/toc/2169-3536In this paper, a frequency reconfigurable, conformal, durable, optically transparent, and unidirectional antenna design is demonstrated for the first time. In the demonstrated design, continuous frequency tuning is achieved by integrating a varactor diode in a folded dipole radiator, which is backed by a water-filled reflector to produce unidirectional radiation pattern mimicking the radiation characteristics of microstrip patch antennas. The radiating component of the explored antenna is manufactured from transparent conductive fabric, which has about 72% optical transparency and occupies a small fraction of the entire antenna. The water-filled reflector is located underneath the dipole radiator. Water is contained inside a rectangular box made from flexible-transparent-hydrophobic polymer, polydimethylsiloxane (PDMS). Both water and PDMS are highly transparent, moreover, PDMS has excellent flexibility and water is a liquid, thus, the demonstrated antenna exhibits excellent transparency and durability against physical deformation. The tiny varactor diode integrated in the folded dipole radiator has insignificant effect on the overall transparency and flexibility of the antenna. The explored design has been numerically investigated and experimentally validated through measurements. Measurements show continuous frequency tuning from 2.38 GHz to 2.67 GHz with an average 10-dB return loss bandwidth of about 170 MHz. Moreover, the antenna maintains good front-to-back ratio in the entire operating band.Abu Sadat Md. SayemRoy B. V. B. SimorangkirKaru P. EsselleDushmantha N. ThalakotunaAli LalbakhshIEEEarticle3-D printingcompositeconformalfolded dipolepolymerpure waterElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 9, Pp 147042-147053 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	3-D printing composite conformal folded dipole polymer pure water Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	3-D printing composite conformal folded dipole polymer pure water Electrical engineering. Electronics. Nuclear engineering TK1-9971 Abu Sadat Md. Sayem Roy B. V. B. Simorangkir Karu P. Esselle Dushmantha N. Thalakotuna Ali Lalbakhsh An Electronically-Tunable, Flexible, and Transparent Antenna With Unidirectional Radiation Pattern
description	In this paper, a frequency reconfigurable, conformal, durable, optically transparent, and unidirectional antenna design is demonstrated for the first time. In the demonstrated design, continuous frequency tuning is achieved by integrating a varactor diode in a folded dipole radiator, which is backed by a water-filled reflector to produce unidirectional radiation pattern mimicking the radiation characteristics of microstrip patch antennas. The radiating component of the explored antenna is manufactured from transparent conductive fabric, which has about 72% optical transparency and occupies a small fraction of the entire antenna. The water-filled reflector is located underneath the dipole radiator. Water is contained inside a rectangular box made from flexible-transparent-hydrophobic polymer, polydimethylsiloxane (PDMS). Both water and PDMS are highly transparent, moreover, PDMS has excellent flexibility and water is a liquid, thus, the demonstrated antenna exhibits excellent transparency and durability against physical deformation. The tiny varactor diode integrated in the folded dipole radiator has insignificant effect on the overall transparency and flexibility of the antenna. The explored design has been numerically investigated and experimentally validated through measurements. Measurements show continuous frequency tuning from 2.38 GHz to 2.67 GHz with an average 10-dB return loss bandwidth of about 170 MHz. Moreover, the antenna maintains good front-to-back ratio in the entire operating band.
format	article
author	Abu Sadat Md. Sayem Roy B. V. B. Simorangkir Karu P. Esselle Dushmantha N. Thalakotuna Ali Lalbakhsh
author_facet	Abu Sadat Md. Sayem Roy B. V. B. Simorangkir Karu P. Esselle Dushmantha N. Thalakotuna Ali Lalbakhsh
author_sort	Abu Sadat Md. Sayem
title	An Electronically-Tunable, Flexible, and Transparent Antenna With Unidirectional Radiation Pattern
title_short	An Electronically-Tunable, Flexible, and Transparent Antenna With Unidirectional Radiation Pattern
title_full	An Electronically-Tunable, Flexible, and Transparent Antenna With Unidirectional Radiation Pattern
title_fullStr	An Electronically-Tunable, Flexible, and Transparent Antenna With Unidirectional Radiation Pattern
title_full_unstemmed	An Electronically-Tunable, Flexible, and Transparent Antenna With Unidirectional Radiation Pattern
title_sort	electronically-tunable, flexible, and transparent antenna with unidirectional radiation pattern
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/eab9c7571d9b4b529569923b12e612aa
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An Electronically-Tunable, Flexible, and Transparent Antenna With Unidirectional Radiation Pattern

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