Tunable directional subwavelength acoustic antenna based on Mie resonance

Modulating the emission pattern of classic sound sources with a sub-wavelength scale dimension is a challenging. In this letter, we demonstrate theoretically and experimentally that a Mie-resonance based antenna can be designed in various modes to effectively enhance the emissivity of the radiated p...

Descripción completa

Detalles Bibliográficos
Autores principales: Zhang, Jin, Cheng, Ying, Liu, Xiaojun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6030154/
https://www.ncbi.nlm.nih.gov/pubmed/29968747
http://dx.doi.org/10.1038/s41598-018-27970-5
_version_ 1783337087842385920
author Zhang, Jin
Cheng, Ying
Liu, Xiaojun
author_facet Zhang, Jin
Cheng, Ying
Liu, Xiaojun
author_sort Zhang, Jin
collection PubMed
description Modulating the emission pattern of classic sound sources with a sub-wavelength scale dimension is a challenging. In this letter, we demonstrate theoretically and experimentally that a Mie-resonance based antenna can be designed in various modes to effectively enhance the emissivity of the radiated power and directivity of radiation pattern. A 2.33-fold enhancement of the radiated power and an 8.93-fold enhancement of the sound intensity are achieved in the mainlobe direction. Furthermore, we propose reconfigurable antenna scanning where the selectable beam direction is free to be controlled from 0° to 360°. The tunable directional acoustic antenna offers a new way to control sound with the improved performance.
format Online
Article
Text
id pubmed-6030154
institution National Center for Biotechnology Information
language English
publishDate 2018
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-60301542018-07-11 Tunable directional subwavelength acoustic antenna based on Mie resonance Zhang, Jin Cheng, Ying Liu, Xiaojun Sci Rep Article Modulating the emission pattern of classic sound sources with a sub-wavelength scale dimension is a challenging. In this letter, we demonstrate theoretically and experimentally that a Mie-resonance based antenna can be designed in various modes to effectively enhance the emissivity of the radiated power and directivity of radiation pattern. A 2.33-fold enhancement of the radiated power and an 8.93-fold enhancement of the sound intensity are achieved in the mainlobe direction. Furthermore, we propose reconfigurable antenna scanning where the selectable beam direction is free to be controlled from 0° to 360°. The tunable directional acoustic antenna offers a new way to control sound with the improved performance. Nature Publishing Group UK 2018-07-03 /pmc/articles/PMC6030154/ /pubmed/29968747 http://dx.doi.org/10.1038/s41598-018-27970-5 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Zhang, Jin
Cheng, Ying
Liu, Xiaojun
Tunable directional subwavelength acoustic antenna based on Mie resonance
title Tunable directional subwavelength acoustic antenna based on Mie resonance
title_full Tunable directional subwavelength acoustic antenna based on Mie resonance
title_fullStr Tunable directional subwavelength acoustic antenna based on Mie resonance
title_full_unstemmed Tunable directional subwavelength acoustic antenna based on Mie resonance
title_short Tunable directional subwavelength acoustic antenna based on Mie resonance
title_sort tunable directional subwavelength acoustic antenna based on mie resonance
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6030154/
https://www.ncbi.nlm.nih.gov/pubmed/29968747
http://dx.doi.org/10.1038/s41598-018-27970-5
work_keys_str_mv AT zhangjin tunabledirectionalsubwavelengthacousticantennabasedonmieresonance
AT chengying tunabledirectionalsubwavelengthacousticantennabasedonmieresonance
AT liuxiaojun tunabledirectionalsubwavelengthacousticantennabasedonmieresonance

Ejemplares similares