title: A broadband polygonal cloak for acoustic wave designed with linear coordinate transformation.
abstract: Previous acoustic cloaks designed with transformation acoustics always involve inhomogeneous material. In this paper, a design of acoustic polygonal cloak is proposed using linear polygonal transformation method. The designed acoustic polygonal cloak has homogeneous and anisotropic parameters, which is much easier to realize in practice. Furthermore, a possible acoustic metamaterial structure to realize the cloak is proposed. Simulation results on the real structure show that the metamaterial acoustic cloak is effective to reduce the scattering of the object.
authors.affiliation: The Innovative Institute of Electromagnetic Information and Electronic Integration, Department of Electronic Engineering, Zhejiang University, Hangzhou, 310027, China.
authors.forename: Rongrong
authors.initials: R
authors.lastname: Zhu
authors.affiliation: The Innovative Institute of Electromagnetic Information and Electronic Integration, Department of Electronic Engineering, Zhejiang University, Hangzhou, 310027, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Zheng
authors.affiliation: Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139-4307, USA.
authors.forename: Chu
authors.initials: C
authors.lastname: Ma
authors.affiliation: Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139-4307, USA.
authors.forename: Jun
authors.initials: J
authors.lastname: Xu
authors.affiliation: Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139-4307, USA.
authors.forename: Nicholas
authors.initials: N
authors.lastname: Fang
authors.affiliation: The Innovative Institute of Electromagnetic Information and Electronic Integration, Department of Electronic Engineering, Zhejiang University, Hangzhou, 310027, China.
authors.forename: Hongsheng
authors.initials: H
authors.lastname: Chen