We demonstrate deterministic control of acoustic transmission using a tunable resonator comprising a maze cylinder and an adjustable slit integrated into a waveguide. This compact metamaterial structure supports Mie resonances that interfere with the continuum waveguide mode, generating a Fano resonance. The transmission spectrum can be continuously reconfigured through two independently adjustable mechanical pathways: changing the slit width and changing the resonator–slit separation. Experimental and numerical results show deterministic control of the asymmetry parameter q and quality factor Q , enabling direct adjustment of the transmission line shape and resonance bandwidth for applications such as reconfigurable acoustic filters and sensors.
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Zhang et al. (2026) studied this question.
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