https://doi.org/10.1140/epjp/s13360-023-04833-1
Regular Article
Acoustic analog-to-digital converter based on solid–solid phononic crystal cavity
Optoelectronics and Nanophotonics Research Lab. (ONRL), Faculty of Electrical Engineering, Sahand University of Technology, Tabriz, Iran
Received:
12
November
2023
Accepted:
23
December
2023
Published online:
16
January
2024
This study examines the implementation of an analog-to-digital converter (ADC) using solid-state phononic crystals. The proposed design comprises one input and two output waveguides, which function as a 2-bit ADC. As the amplitude of the incoming wave increases, nonlinearity is induced within the structure due to the displacement, resulting in changes in mass density. The suggested acoustic crystal matrix comprises a 21 × 30 array of steel rods embedded in a PMMA host material and operates at a frequency of 78 kHz. The output transmission values for mode “01” are 0.61 for output 1 and 0.16 for output 2. Similarly, for mode “10”, output transmission is 0.21 for output 1 and 0.64 for output 2. Lastly, for mode “11”, the output transmission is 0.42 for output 1 and 0.56 for output 2. The manufacturing tolerance is approximately 0.05 of the transmission value.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
