Spurious Mitigation of Layered Surface Acoustic Wave Resonators With Double-Busbar Configuration Using 42°YX-Lithium Tantalate Thin Plate

This article investigates a spurious resonance appearing near the antiresonance when the double-busbar configuration is applied to layered surface acoustic wave (SAW) resonators using 42°YX-LiTaO3 thin plates, and possible mitigation methods are studied both theoretically and experimentally. First,...

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Veröffentlicht in:IEEE transactions on microwave theory and techniques 2023-08, Vol.71 (8), p.3493-3500
Hauptverfasser: He, Yiwen, Wu, Ting, Yang, Ying, Workie, Temesgen Bailie, Shuai, Yao, Wu, Chuangui, Bao, Jingfu, Hashimoto, Ken-ya
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container_issue 8
container_start_page 3493
container_title IEEE transactions on microwave theory and techniques
container_volume 71
creator He, Yiwen
Wu, Ting
Yang, Ying
Workie, Temesgen Bailie
Shuai, Yao
Wu, Chuangui
Bao, Jingfu
Hashimoto, Ken-ya
description This article investigates a spurious resonance appearing near the antiresonance when the double-busbar configuration is applied to layered surface acoustic wave (SAW) resonators using 42°YX-LiTaO3 thin plates, and possible mitigation methods are studied both theoretically and experimentally. First, the origin of the spurious resonance is revealed, and the influence of structural parameters is studied using the periodic 3-D finite-element method (FEM) powered by the hierarchical cascading technique (HCT). Then, possible methods are discussed for spurious mitigation. Finally, experimental data are provided for validation of the present analysis.
doi_str_mv 10.1109/TMTT.2023.3253382
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subjects Busbars
Configurations
Finite element method
Lithium tantalates
Resonance
Resonators
Surface acoustic wave devices
Thin plates
title Spurious Mitigation of Layered Surface Acoustic Wave Resonators With Double-Busbar Configuration Using 42°YX-Lithium Tantalate Thin Plate
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