Inverse design of high-Q wave filters in two-dimensional phononic crystals by topology optimization.

@article{Dong2017InverseDO,
  title={Inverse design of high-Q wave filters in two-dimensional phononic crystals by topology optimization.},
  author={Hao-Wen Dong and Yang Wang and Chuanzeng Zhang},
  journal={Ultrasonics},
  year={2017},
  volume={76},
  pages={109-124}
}
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… CONTINUE READING