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An Active Electromagnetically Induced Transparency (EIT) Metamaterial Based on Conductive Coupling
In this paper, we demonstrate an active metamaterial manifesting electromagnetically induced transparency (EIT) effect in the microwave regime. The metamaterial unit cell consists of a double-cross structure, between which a varactor diode is integrated. The capacitance of the diode is controlled by...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9606948/ https://www.ncbi.nlm.nih.gov/pubmed/36295435 http://dx.doi.org/10.3390/ma15207371 |
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author | Zhang, Wu Lin, Jiahan Fang, Xiaohui Lin, Yanxiao Wang, Kai Zhang, Meng |
author_facet | Zhang, Wu Lin, Jiahan Fang, Xiaohui Lin, Yanxiao Wang, Kai Zhang, Meng |
author_sort | Zhang, Wu |
collection | PubMed |
description | In this paper, we demonstrate an active metamaterial manifesting electromagnetically induced transparency (EIT) effect in the microwave regime. The metamaterial unit cell consists of a double-cross structure, between which a varactor diode is integrated. The capacitance of the diode is controlled by a reversed electrical bias voltage supplied through two connected strip lines. The diode behaves as a radiative resonant mode and the strip lines as a non-radiative resonant mode. The two modes destructively interference with each other through conductive coupling, which leads to a transmission peak in EIT effect. Through electrical control of the diode capacitance, the transmission peak frequency is shifted from 7.4 GHz to 8.7 GHz, and the peak-to-dip ratio is tuned from 1.02 to 1.66, demonstrating a significant tunability. |
format | Online Article Text |
id | pubmed-9606948 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-96069482022-10-28 An Active Electromagnetically Induced Transparency (EIT) Metamaterial Based on Conductive Coupling Zhang, Wu Lin, Jiahan Fang, Xiaohui Lin, Yanxiao Wang, Kai Zhang, Meng Materials (Basel) Article In this paper, we demonstrate an active metamaterial manifesting electromagnetically induced transparency (EIT) effect in the microwave regime. The metamaterial unit cell consists of a double-cross structure, between which a varactor diode is integrated. The capacitance of the diode is controlled by a reversed electrical bias voltage supplied through two connected strip lines. The diode behaves as a radiative resonant mode and the strip lines as a non-radiative resonant mode. The two modes destructively interference with each other through conductive coupling, which leads to a transmission peak in EIT effect. Through electrical control of the diode capacitance, the transmission peak frequency is shifted from 7.4 GHz to 8.7 GHz, and the peak-to-dip ratio is tuned from 1.02 to 1.66, demonstrating a significant tunability. MDPI 2022-10-21 /pmc/articles/PMC9606948/ /pubmed/36295435 http://dx.doi.org/10.3390/ma15207371 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Zhang, Wu Lin, Jiahan Fang, Xiaohui Lin, Yanxiao Wang, Kai Zhang, Meng An Active Electromagnetically Induced Transparency (EIT) Metamaterial Based on Conductive Coupling |
title | An Active Electromagnetically Induced Transparency (EIT) Metamaterial Based on Conductive Coupling |
title_full | An Active Electromagnetically Induced Transparency (EIT) Metamaterial Based on Conductive Coupling |
title_fullStr | An Active Electromagnetically Induced Transparency (EIT) Metamaterial Based on Conductive Coupling |
title_full_unstemmed | An Active Electromagnetically Induced Transparency (EIT) Metamaterial Based on Conductive Coupling |
title_short | An Active Electromagnetically Induced Transparency (EIT) Metamaterial Based on Conductive Coupling |
title_sort | active electromagnetically induced transparency (eit) metamaterial based on conductive coupling |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9606948/ https://www.ncbi.nlm.nih.gov/pubmed/36295435 http://dx.doi.org/10.3390/ma15207371 |
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