| 摘要 |
A metamaterial (400) for attenuating acoustic transmission comprises a plurality of layers (410). Each layer (410) comprises a transmission structure (420) and a resonator (450), coupled to the transmission structure (420). The transmission structure (420) in a layer (410) is coupled to the transmission structures (420) of the layers (410) neighbouring said layer (410).The resonator (450) in a layer (410) is coupled to the transmission structure (420) of the layers (410) neighbouring said layer (410). |
