宽带
压电
声学
材料科学
复合数
波长
电感器
光束转向
光电子学
光学
作者
Yao-Yin Peng,Jin-Heng Chen,Zhang-Zhao Yang,Xin-Ye Zou,Chao Tao,Jian-chun Cheng
标识
DOI:10.35848/1882-0786/ac444a
摘要
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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