Electronically Switchable Broadband Metamaterial Absorber

Abstract In this study, the novel electronically switchable broadband metamaterial absorber, using a PIN diode, is proposed. The unit cell of the absorber was designed with a Jerusalem-cross resonator and an additive ring structure, based on the FR-4 dielectric substrate. Chip resistors and PIN diod...

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Autores principales:	Dongju Lee, Heijun Jeong, Sungjoon Lim
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ca5aa1cb64b4481f9cf5772f29a361a8
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id	oai:doaj.org-article:ca5aa1cb64b4481f9cf5772f29a361a8
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spelling	oai:doaj.org-article:ca5aa1cb64b4481f9cf5772f29a361a82021-12-02T12:30:54ZElectronically Switchable Broadband Metamaterial Absorber10.1038/s41598-017-05330-z2045-2322https://doaj.org/article/ca5aa1cb64b4481f9cf5772f29a361a82017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05330-zhttps://doaj.org/toc/2045-2322Abstract In this study, the novel electronically switchable broadband metamaterial absorber, using a PIN diode, is proposed. The unit cell of the absorber was designed with a Jerusalem-cross resonator and an additive ring structure, based on the FR-4 dielectric substrate. Chip resistors and PIN diodes were used to provide both a broadband characteristic and a switching capability. To satisfy the polarization insensitivity, the unit cell was designed as a symmetrical structure, including the DC bias network, electronic devices, and conductor patterns. The performance of the proposed absorber was verified using full-wave simulation and measurements. When the PIN diode was in the ON state, the proposed absorber had a 90% absorption bandwidth from 8.45–9.3 GHz. Moreover, when the PIN diode was in the OFF state, the 90% absorption bandwidth was 9.2–10.45 GHz. Therefore, the absorption band was successfully switched between the low-frequency band and the high-frequency band as the PIN diode was switched between the ON and OFF states. Furthermore, the unit cell of the proposed absorber was designed as a symmetrical structure, and its performance showed insensitivity with respect to the polarization angle.Dongju LeeHeijun JeongSungjoon LimNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Dongju Lee Heijun Jeong Sungjoon Lim Electronically Switchable Broadband Metamaterial Absorber
description	Abstract In this study, the novel electronically switchable broadband metamaterial absorber, using a PIN diode, is proposed. The unit cell of the absorber was designed with a Jerusalem-cross resonator and an additive ring structure, based on the FR-4 dielectric substrate. Chip resistors and PIN diodes were used to provide both a broadband characteristic and a switching capability. To satisfy the polarization insensitivity, the unit cell was designed as a symmetrical structure, including the DC bias network, electronic devices, and conductor patterns. The performance of the proposed absorber was verified using full-wave simulation and measurements. When the PIN diode was in the ON state, the proposed absorber had a 90% absorption bandwidth from 8.45–9.3 GHz. Moreover, when the PIN diode was in the OFF state, the 90% absorption bandwidth was 9.2–10.45 GHz. Therefore, the absorption band was successfully switched between the low-frequency band and the high-frequency band as the PIN diode was switched between the ON and OFF states. Furthermore, the unit cell of the proposed absorber was designed as a symmetrical structure, and its performance showed insensitivity with respect to the polarization angle.
format	article
author	Dongju Lee Heijun Jeong Sungjoon Lim
author_facet	Dongju Lee Heijun Jeong Sungjoon Lim
author_sort	Dongju Lee
title	Electronically Switchable Broadband Metamaterial Absorber
title_short	Electronically Switchable Broadband Metamaterial Absorber
title_full	Electronically Switchable Broadband Metamaterial Absorber
title_fullStr	Electronically Switchable Broadband Metamaterial Absorber
title_full_unstemmed	Electronically Switchable Broadband Metamaterial Absorber
title_sort	electronically switchable broadband metamaterial absorber
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/ca5aa1cb64b4481f9cf5772f29a361a8
work_keys_str_mv	AT dongjulee electronicallyswitchablebroadbandmetamaterialabsorber AT heijunjeong electronicallyswitchablebroadbandmetamaterialabsorber AT sungjoonlim electronicallyswitchablebroadbandmetamaterialabsorber
_version_	1718394305578532864

Electronically Switchable Broadband Metamaterial Absorber

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