Acoustic metamaterial structure
US12254858B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2022 |
| Grant date | Mar 18, 2025 |
| Priority date | — |
| Expiry date | Feb 18, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K11/161
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Disclosed herein is an acoustic metamaterial structure which can effectively reduce noise in a specific frequency range through formation of an acoustic bandgap, wherein the specific frequency range is determined by a periodic structure formed by an array of multiple unit cells. The acoustic metamaterial structure includes multiple first unit cells each including a first space having a first cross-sectional area and a second space disposed downstream of the first space in a flow direction of fluid to communicate with the first space, the second space having a second cross-sectional area larger than the first cross-sectional area, wherein the acoustic metamaterial structure reduces noise in a specific frequency range through formation of an acoustic bandgap, the specific frequency range being determined by a periodic structure formed by an array of the first space and the second space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.