A study on acoustic beam steering with parametric loudspeaker based on individual delay-filtering for carrier and sideband waves

2014 ◽  
Author(s):  
Masato Nakayama ◽  
Takanobu Nishiura ◽  
Ryota Okuno ◽  
Noboru Nakasako
Keyword(s):  
Beam Steering ◽  
Acoustic Beam

Wide-Band Acoustooptic Deflectors Using Acoustic Beam Steering

1970 ◽  
Vol 17 (1) ◽  
pp. 34-40 ◽  
Author(s):  
G.A. Coquin ◽  
J.P. Griffin ◽  
L.K. Anderson
Keyword(s):  
Beam Steering ◽  
Wide Band ◽  
Acoustic Beam

Broadband tunable acoustic metasurface based on piezoelectric composite structure with two resonant modes

2021 ◽  
Author(s):  
Yao-Yin Peng ◽  
Jin-Heng Chen ◽  
Zhang-Zhao Yang ◽  
Xin-Ye Zou ◽  
Chao Tao ◽  
...  
Keyword(s):  
Composite Structure ◽  
Beam Steering ◽  
Piezoelectric Composite ◽  
Frequency Range ◽  
Acoustic Beam ◽  
Resonant Frequencies ◽  
Operating Frequency Range ◽  
Resonant Modes ◽  
Simulation And Experiment ◽  
Good Potential

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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