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Three dimensional acoustic carpet cloak based on an ultrathin metasurface

  • Xi'an Jiaotong University

科研成果: 书/报告/会议事项章节 › 会议稿件 › 同行评审

摘要

The manipulation of acoustic wave has great significance in engineering related to acoustic device design. Recent study reveals that acoustic metasurface can easily change the wave front by a periodic phase array composed of microunits, which provide us a branch approach in physical application. Here, we proposed a design of a 3D ultrathin acoustic carpet cloak based on acoustic metasurface in deep sub-wavelength range. The microunit of the metasurface is constructed by two helmholtz resonators nested together and we can change the reflection phase by adjusting the relative angle of the two helmholtz resonators. The carpet can completely conceal the object because the designed metasurface can compensate the phase distortion caused by the object. The operating frequency is about 1200Hz, numerical simulations show the carpet functions well in normal and small-angle oblique incidences.

源语言英语
主期刊名Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019
出版商Canadian Acoustical Association
ISBN(电子版)9781999181000
出版状态已出版 - 2019
活动26th International Congress on Sound and Vibration, ICSV 2019 - Montreal, 加拿大
期限: 7 7月 2019 → 11 7月 2019

出版系列

姓名Proceedings of the 26th International Congress on Sound and Vibration, ICSV 2019

会议

会议26th International Congress on Sound and Vibration, ICSV 2019
国家/地区加拿大
市Montreal
时期7/07/19 → 11/07/19

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