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.
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Publishing Group
2021-03-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-021-22325-7 |