期刊
ULTRASONICS
卷 76, 期 -, 页码 109-124出版社
ELSEVIER
DOI: 10.1016/j.ultras.2016.12.018
关键词
Filters; Phononic crystals; Topology optimization; Q factor; Fano resonances; Symmetric resonance
资金
- Fundamental Research Funds for the Central Universities [2015YJS125]
- Chinese Scholarship Council (CSC)
- German Academic Exchange Service (DDAD) through the Sino-German Joint Research Program (PPP)
Topology optimization of a waveguide-cavity structure in phononic crystals for designing narrow band filters under the given operating frequencies is presented in this paper. We show that it is possible to obtain an ultra-high-Q filter by only optimizing the cavity topology without introducing any other coupling medium. The optimized cavity with highly symmetric resonance can be utilized as the multi-channel filter, raising filter and T-splitter. In addition, most optimized high-Q filters have the Fano resonances dear the resonant frequencies. Furthermore, our filter optimization based on the waveguide and cavity, and our simple illustration of a computational approach to Wave control in phononic crystals can be extended and applied to design other acoustic devices or even opto-mechanical devices. (C) 2016 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据