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Purpose <p>This study aims to propose a novel design for a 4 × 2 encoder and its corresponding 2 × 4 decoder using two-dimensional phononic crystal ring resonator (PnC-RR).</p> Methods <p>The proposed encoder/decoder structure is based on acoustic waveguides and crystal ring resonator cavities, operating at a specific frequency of 45.1 kHz. The two-dimensional design employs a square lattice configuration comprising a rectangular mercury base and cylindrical water rods. The performance of the design is evaluated using key parameters such as Contrast Ratio, Extinction Ratio, and Insertion Loss. All simulations and analyses were conducted using COMSOL Multiphysics software.</p> Results <p>The design demonstrates effective performance metrics, making it suitable for integration into phononic circuits. The encoder and decoder structures are optimized to enhance signal processing capabilities at the specified frequency.</p> Applications <p>This design has potential applications in phononic integrated circuits, particularly in underwater acoustic systems and medical technologies.</p> Conclusion <p>The proposed 4 × 2 encoder and 2 × 4 decoder based on PnC-RR offers a promising solution for efficient signal processing in specialized environments, supported by robust performance parameters and reliable simulation results.</p>

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Numerical Investigation of 4 × 2 Encoder and 2 × 4 Decoder Using Phononic Crystal Based Ring Resonator for Acoustic Applications

  • 期刊论文

  • 发表日期：

    2025年1月7日

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  • Arka Roy Bin,
  • Bhaskarrao Yakkala,
  • Jayanta Kumar Rakshit,
  • V. Nagaraju,
  • Manjur Hossain,
  • Dhiraj Kumar

摘要

Purpose

This study aims to propose a novel design for a 4 × 2 encoder and its corresponding 2 × 4 decoder using two-dimensional phononic crystal ring resonator (PnC-RR).

Methods

The proposed encoder/decoder structure is based on acoustic waveguides and crystal ring resonator cavities, operating at a specific frequency of 45.1 kHz. The two-dimensional design employs a square lattice configuration comprising a rectangular mercury base and cylindrical water rods. The performance of the design is evaluated using key parameters such as Contrast Ratio, Extinction Ratio, and Insertion Loss. All simulations and analyses were conducted using COMSOL Multiphysics software.

Results

The design demonstrates effective performance metrics, making it suitable for integration into phononic circuits. The encoder and decoder structures are optimized to enhance signal processing capabilities at the specified frequency.

Applications

This design has potential applications in phononic integrated circuits, particularly in underwater acoustic systems and medical technologies.

Conclusion

The proposed 4 × 2 encoder and 2 × 4 decoder based on PnC-RR offers a promising solution for efficient signal processing in specialized environments, supported by robust performance parameters and reliable simulation results.