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首页> 外文期刊>Ultrasonics, Ferroelectrics and Frequency Control, IEEE Transactions on >Analytical modeling of a sandwiched plate piezoelectric transformer-based acoustic-electric transmission channel
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Analytical modeling of a sandwiched plate piezoelectric transformer-based acoustic-electric transmission channel

机译：基于夹层板压电变压器的声电传输通道的解析模型

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摘要

The linear propagation of electromagnetic and dilatational waves through a sandwiched plate piezoelectric transformer (SPPT)-based acoustic-electric transmission channel is modeled using the transfer matrix method with mixeddomain two-port ABCD parameters. This SPPT structure is of great interest because it has been explored in recent years as a mechanism for wireless transmission of electrical signals through solid metallic barriers using ultrasound. The model we present is developed to allow for accurate channel performance prediction while greatly reducing the computational complexity associated with 2- and 3-dimensional finite element analysis. As a result, the model primarily considers 1-dimensional wave propagation; however, approximate solutions for higher-dimensional phenomena (e.g., diffraction in the SPPT??s metallic core layer) are also incorporated. The model is then assessed by comparing it to the measured wideband frequency response of a physical SPPT-based channel from our previous work. Very strong agreement between the modeled and measured data is observed, confirming the accuracy and utility of the presented model.
机译：使用带有混合域两端口ABCD参数的传递矩阵方法，对电磁波和膨胀波通过基于夹板压电变压器（SPPT）的声电传输通道的线性传播进行建模。这种SPPT结构引起了极大的兴趣，因为近年来它已被开发为一种使用超声波通过固体金属屏障无线传输电信号的机制。我们开发的模型可以精确预测通道性能，同时大大降低与2维和3维有限元分析相关的计算复杂性。结果，该模型主要考虑了一维波的传播。但是，对于高维现象（例如，在SPPT′s金属芯层中的衍射），也可以采用近似的解决方案。然后，通过将其与我们以前的工作中基于物理SPPT的信道测得的宽带频率响应进行比较，来评估该模型。观察到建模数据与测量数据之间的一致性非常强，从而证实了所提出模型的准确性和实用性。

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