Tunable acoustic radiation pattern assisted by effective impedance boundary

Feng Qian^{1, 2}, Li Quan^{1, 3}, Li-Wei Wang¹, Xiao-Zhou Liu^{1, †,}, Xiu-Fen Gong¹

((a)–(c)) Simulated results of intensify patterns of a plane wave passing through the sample at f = 8600 Hz when d_L = 1.5 mm, 9.5 mm, and 17.5 mm, respectively. (d) The beam deflection angle as a function of the distance between the left side-line of the slit and the HRs.