Hauptman Ham, LLP
Sound wave metamaterial
A sound wave metamaterial amplifies a sound wave, and includes a plate. The plate has a plurality of sound wave guides passing through both surfaces of the plate and having a predetermined pattern. The sound wave guides are spaced apart from each other by a predetermined distance and face each other, with respect to a central point, a central axis or a central surface.
KOREA INSTITUTE OF MACHINERY & MATERIALS
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Kyungjun Seong-Hyun Shin Jedo Youngdo
Song Lee Hur Kim Jung