基于自准直声波晶体的声学陷波滤波器

IF 2.3 4区物理与天体物理 Q3 PHYSICS, APPLIED

Applied Physics Express Pub Date : 2024-08-29 DOI:10.35848/1882-0786/ad6ee7

Chengwen Wo, Ting Zhang, Li Sun, Xiaojun Liu

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引用次数: 0

摘要

利用二维（2D）声波晶体（SC）中的自准直效应，我们提出了一种由两个完美反射镜和一个分束器组成的声学陷波滤波器。数值模拟表明，通过合理设计二维声波晶体的内部结构，可以将所需频率的自准直声波截留在两个反射镜之间，实现陷波滤波功能。此外，陷波滤波器的频率和带宽可通过改变内部结构的参数进行任意调整，频带相当宽。其潜在应用包括声学通信和声学信号处理，特别是在水下环境中。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Acoustic notch filter based on self-collimation sonic crystals

Utilizing the self-collimation effect in two-dimensional (2D) sonic crystals (SCs), we have proposed an acoustic notch filter which is composed of two perfect mirrors and a beam splitter. Numerical simulation shows that by properly designing the inside structure of the 2D SC, the self-collimated acoustic waves with a desired frequency can be trapped between the two mirrors, realizing the notch filtering function. Moreover, the frequency and bandwidth of the notch filter can be arbitrarily adjusted by changing the parameters of the internel structure, in a considerably broad band. Potential applications include acoustic communication and acoustic signal processing, especially for underwater circumstances.

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来源期刊

Applied Physics Express 物理-物理：应用

CiteScore

4.80

自引率

8.70%

发文量

310

审稿时长

1.2 months

期刊介绍： Applied Physics Express (APEX) is a letters journal devoted solely to rapid dissemination of up-to-date and concise reports on new findings in applied physics. The motto of APEX is high scientific quality and prompt publication. APEX is a sister journal of the Japanese Journal of Applied Physics (JJAP) and is published by IOP Publishing Ltd on behalf of the Japan Society of Applied Physics (JSAP).