This paper proposed an approach to construct the acoustic cloak by a network of subwavelength Helmholtz resonators. Based on transmission line model to describe the acoustic wave propagation inside such effective anisotropic medium, we derived the acoustic parameters such as effective density and compressibility. Our simulation demonstrates the propagation of acoustic waves can be bent and excluded from an object inside the cloak with no perturbation of exterior field, which may have great potential application in ultrasound noise control.
- Noise Control and Acoustics Division
Design of Acoustic Cloak by Transmission Line Approach
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Zhang, S, & Fang, N. "Design of Acoustic Cloak by Transmission Line Approach." Proceedings of the ASME 2008 Noise Control and Acoustics Division Conference. ASME 2008 Noise Control and Acoustics Division Conference. Dearborn, Michigan, USA. July 28–30, 2008. pp. 335-338. ASME. https://doi.org/10.1115/NCAD2008-73053
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