Matryoshka Phononic Crystals for Anchor-Loss Reduction of Lamb Wave Resonators

被引：0
作者：
Zhu, Yusi [1 ,2 ]
Zhao, Zhan [3 ]
Du, Lidong [1 ]
机构：
[1] Chinese Acad Sci, Aerosp Informat Res Inst, Beijing 100190, Peoples R China
[2] Univ Chinese Acad Sci, Beijing, Peoples R China
[3] Chinese Acad Sci, Inst Elect, Beijing 100190, Peoples R China
来源：
20TH IEEE INTERNATIONAL CONFERENCE ON NANOTECHNOLOGY (IEEE NANO 2020) | 2020年
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1109/nano47656.2020.9183689
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, Matryoshka Phononic Crystals (PnCs), composited with several concentric ring-shaped structures, are first proposed for the purpose of reducing the anchor loss and improving the quality (Q) factor of Lamb wave resonators (LWR). Finite element analysis is carried out to systemically analyze the band structures and transmission loss of PnCs, followed by an analysis of their impacts on Q factor of the resonators. Results showed that the unloaded Q factor of resonator with optimized Matryoshka PnCs is 41305 at around 215.25MHz, which is more than 4 times enhancement than that of conventional resonator. It is indicated that Matryoshka PnCs are promising in reducing resonator anchor loss and further improving quality factor of Lamb wave resonator.
引用
收藏
页码：5 / 9
页数：5
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