Juan TU,Bin LIANG,Jianchun CHENG,Dong ZHANG,Yong LI,Xiasheng GUO
申请号：
US14779172
公开号：
US20160051227A1
申请日:
2013.03.22
申请国别(地区):
US
年份:
2016
代理人:
摘要：
Acoustic diodes, devices incorporating such diodes and methods of using such devices are disclosed. An acoustic diode may include a periodic acoustic grating and a uniform plate. The periodic acoustic grating may include a plurality of .gratings. The uniform plate may foe separated from-the periodic acoustic-grating by a resonant cavity. The acoustic diode may be configured to have a first transmission, efficiency for acoustic waves incident on the periodic acoustic grating that is greater than a second transmission efficiency for acoustic waves incident on the uniform plate. The acoustic waves may have a. wavelength within a range of wavelengths. Devices incorporating the acoustic diode may include medical imaging devices, such as ultrasound devices, and noise reduction devices.
