| 基于耦合模理论的Y型声表面波器件特性分析 |
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| 引用本文： | 章安良,朱大中.基于耦合模理论的Y型声表面波器件特性分析[J].电声技术,2004(12):7-9,26. |
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| 作者姓名： | 章安良 朱大中 |
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| 作者单位： | 宁波大学,电气工程与自动化系,浙江,宁波,315211;浙江大学,信息与电子工程学系,浙江,杭州,310027 |
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| 基金项目： | 国家自然科学基金(60176027)，浙江省教育厅科研项目(20040929) |
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| 摘 要： | 声表面波理论是研究高性能声表面波器件的理论基础。耦合模理论因能正确、全面反映声表面波在压电材料上的传播特性得到广泛的重视。应用耦合模理论分析推导自行研制的Y型声表面波器件特性，并编制相应的软件包。应用该软件包计算Y型声表面波器件中心频率处的插入损耗(-12．6dB)与实验结果(约-13dB)相近，为声表面波器件提供一种有效的分析工具。
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| 关 键 词： | 声表面波 耦合模方程 插入损耗 |
| 文章编号： | 1002-8684(2004)12-0007-03 |
Analysis of Characteristics of Y-type Surface Acoustic Wave Device Based on Coupling of Modes Theory |
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| ZHANG An-liang,ZHU Da-zhong.Analysis of Characteristics of Y-type Surface Acoustic Wave Device Based on Coupling of Modes Theory[J].Audio Engineering,2004(12):7-9,26. |
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| Authors: | ZHANG An-liang ZHU Da-zhong |
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| Affiliation: | ZHANG An-liang1,ZHU Da-zhong2 |
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| Abstract: | Theory of acoustic surface wave is the base for studying high performance acoustic surface is device. coupling of modes theory is studied extensively, for it can describe propagation characteristics accuratelly and comprehensively. Characteristics of Y style acoustic surface wave device is derived based on the coupling of modes theory, which is coded software package. Insertion loss(-12.6 dB)of Y style acoustic surface wave device calculated by the software package is close to experimental value(about-13 dB) around central frequency. |
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| Keywords: | acoustic surface wave coupling of modes equations insertion loss |
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