A Novel Approach to Density Near-Zero Acoustic Metamaterials
The study demonstrates the possibility of achieving near-zero propagation of sound waves in acoustic metamaterials based on a membrane-based metamaterial unit cell which exhibits effective mass density of Lorentzian type. The unit cell, which represents the acoustic counterpart of the split ring res...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/626593 |
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| _version_ | 1832552231545602048 |
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| author | Milan Sečujski Norbert Cselyuszka Vesna Crnojević-Bengin |
| author_facet | Milan Sečujski Norbert Cselyuszka Vesna Crnojević-Bengin |
| author_sort | Milan Sečujski |
| collection | DOAJ |
| description | The study demonstrates the possibility of achieving near-zero propagation of sound waves in acoustic metamaterials based on a membrane-based metamaterial unit cell which exhibits effective mass density of Lorentzian type. The unit cell, which represents the acoustic counterpart of the split ring resonator, was previously used as a building block of left-handed metamaterials, as it exhibits negative density at certain frequencies. In this study we show that its application can be extended to achieving propagation of sound waves at a frequency where its effective density equals zero. This effect can be exploited in a range of applications where extremely low phase variation over long physical distances is required, such as energy tunneling or tailoring the acoustic radiation phase pattern in arbitrary ways. After discussing the dependence of the frequency response of the unit cell on the properties of the host, we show that it can be used to design near-zero acoustic filters with low insertion loss and steep roll-off. Finally, we show that it can be used to achieve simultaneous near-zero propagation at multiple, independently chosen frequencies. |
| format | Article |
| id | doaj-art-7642ec724c55470793c1a893a877cba3 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-7642ec724c55470793c1a893a877cba32025-02-03T05:59:19ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422015-01-01201510.1155/2015/626593626593A Novel Approach to Density Near-Zero Acoustic MetamaterialsMilan Sečujski0Norbert Cselyuszka1Vesna Crnojević-Bengin2Department of Power Engineering, Electronics and Telecommunications, Faculty of Technical Sciences, University of Novi Sad, 21000 Novi Sad, SerbiaDepartment of Power Engineering, Electronics and Telecommunications, Faculty of Technical Sciences, University of Novi Sad, 21000 Novi Sad, SerbiaDepartment of Power Engineering, Electronics and Telecommunications, Faculty of Technical Sciences, University of Novi Sad, 21000 Novi Sad, SerbiaThe study demonstrates the possibility of achieving near-zero propagation of sound waves in acoustic metamaterials based on a membrane-based metamaterial unit cell which exhibits effective mass density of Lorentzian type. The unit cell, which represents the acoustic counterpart of the split ring resonator, was previously used as a building block of left-handed metamaterials, as it exhibits negative density at certain frequencies. In this study we show that its application can be extended to achieving propagation of sound waves at a frequency where its effective density equals zero. This effect can be exploited in a range of applications where extremely low phase variation over long physical distances is required, such as energy tunneling or tailoring the acoustic radiation phase pattern in arbitrary ways. After discussing the dependence of the frequency response of the unit cell on the properties of the host, we show that it can be used to design near-zero acoustic filters with low insertion loss and steep roll-off. Finally, we show that it can be used to achieve simultaneous near-zero propagation at multiple, independently chosen frequencies.http://dx.doi.org/10.1155/2015/626593 |
| spellingShingle | Milan Sečujski Norbert Cselyuszka Vesna Crnojević-Bengin A Novel Approach to Density Near-Zero Acoustic Metamaterials Advances in Materials Science and Engineering |
| title | A Novel Approach to Density Near-Zero Acoustic Metamaterials |
| title_full | A Novel Approach to Density Near-Zero Acoustic Metamaterials |
| title_fullStr | A Novel Approach to Density Near-Zero Acoustic Metamaterials |
| title_full_unstemmed | A Novel Approach to Density Near-Zero Acoustic Metamaterials |
| title_short | A Novel Approach to Density Near-Zero Acoustic Metamaterials |
| title_sort | novel approach to density near zero acoustic metamaterials |
| url | http://dx.doi.org/10.1155/2015/626593 |
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