Tunable prism based on piezoelectric metamaterial for acoustic beam steering

2017 ◽  
Vol 110 (18) ◽  
pp. 181902 ◽  
Author(s):  
J. Xu ◽  
J. Tang
Keyword(s):  
1970 ◽  
Vol 17 (1) ◽  
pp. 34-40 ◽  
Author(s):  
G.A. Coquin ◽  
J.P. Griffin ◽  
L.K. Anderson

Author(s):  
Yao-Yin Peng ◽  
Jin-Heng Chen ◽  
Zhang-Zhao Yang ◽  
Xin-Ye Zou ◽  
Chao Tao ◽  
...  

Abstract In this letter, we propose a deep-wavelength tunable acoustic metasurface composed of a fixed piezoelectric composite structure with a broad operating frequency range. The metasurface unit has two tunable resonant frequencies determined by specific external inductors and can continuously modulate the phase of transmitted wave. The influence of the inductors on the resonant frequencies are studied by simulation and experiment. Moreover, the functions of acoustic beam steering and focusing by the designed metasurface at three arbitrarily chosen frequencies are verified in simulation. This work may have good potential in design of acoustic metasurfaces with broadband operating frequencies.


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