| 陈飞，茅健.基于ANSYS的表面声波标签仿真研究[J].轻工机械,2015,33(1): |
| 基于ANSYS的表面声波标签仿真研究 |
| SAW Tag Modeling and Simulation Based on ANSYS |
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| DOI：IO. 3969/j. issn. 1005 -2895. 2015. 01. 015 |
| 中文关键词: 声表面波标签 铌酸锂晶体 有限元分析法 传播属性 |
| 英文关键词:SAW( Surface Acoustic Wave ) tag LiNb03 crystal finite element analysis propagation property |
| 基金项目: |
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| 摘要点击次数: 1893 |
| 全文下载次数: 1499 |
| 中文摘要: |
| 声表面波无线射频识别技术是现代无线射频识别方法之一。针对目前声表面波标签设计复杂，精度要求较高等
特点，提出了基于ANSYS的声表面波标签设计方法。在声场波动方程和Maxwell方程的基础上，研究二维模型的可行
性，采用128。YX-LiNb0，压电晶体为基底，金属铝为叉指换能器电极，设计2个叉指换能器周期的声表面波标签模型。
对声表面波标签进行模态分析和谐响应分析，仿真结果反映了声表面波在压电基底上的传播轨迹，声表面波的能量分布
图以及幅频特性，为声表面波标签的精确设计提供依据 |
| 英文摘要: |
| The radio frequency identification technology based on surface acoustic wave is one of the modern RFID
methods. For the complex design and high precision of the SAW-Tag,the paper proposed a design method based on the
ANSYS. On the basis of the acoustic wave equations and Maxwell equations, the feasibility of two-dimensional model
was deduced. The piezoelectric crystal 1280 YX-LiNb03 was set as the base and the aluminum as the electrode of
interdigital transducers. the SAW tag model by two interdigital transducers was created. Through modal analysis and
harmonic analysis of SAW tag, the propagation of SAW in piezoelectric substrate can be presented. as well as the energy
distribution and the amplitude frequency characteristics. which provide the proof for precise design of SAW tags. |
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