Abstract
In this paper, by analogy with the theory of radar cross section (RCS) reduction in electromagnetics, we propose a design method for an acoustic invisibility cloak, which can achieve wideband acoustic stealth performance. The cloak consists of two sets of subwavelength metasurface units with phase differences within a range, which can achieve good RCS reduction in a wide band. At the same time, it overcomes the shortcomings of narrowband and high directional dependence of previous metasurface stealth cloaks based on phase gradient distribution. Using a simple resonant cavity metasurface structure, the invisibility cloak based on wideband scattering reduction and sound absorption is realized. Because of its simple structure and wide working frequency band, the RCS stealth cloak has wide engineering application potential.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
