Emitting long-distance spiral airborne sound using low-profile planar acoustic antenna
Acoustic waves that carry orbital angular momentum are difficult to create and maintain at significant distances. Here, the authors present a planar metasurface antenna that enables vortex fields at longer distances.
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| Autores principales: | , , , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Nature Portfolio
2021
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/16b893316c424d0ba183997a3b2d5f95 |
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| Sumario: | Acoustic waves that carry orbital angular momentum are difficult to create and maintain at significant distances. Here, the authors present a planar metasurface antenna that enables vortex fields at longer distances. |
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