This paper presents theoretical analysis on fundamental performances of two configurations of magnetoelectric transducers that are used the most in practice, longitudinal-longitudinal and longitudinal-transverse modes, with a focus on magnetic field sensing and wireless power transfer applications. Based on equivalent circuit models and two-port network theory, we derive explicit closed-form solutions for the magnetoelecitric voltage coefficient and the power delivered to a load. We reveal that although the former configuration exhibits some advantages of utilizing as a sensing system, there is no difference in the maximum output power obtained from the two methods. The question on how to reach the upper bound on transferred power is also discussed. The findings can be used as a generalized framework to design an optimal system, depending on desired applications.

中文翻译：

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磁电换能器的基本问题：磁场传感与无线电力传输系统

本文介绍了在实践中最常用的两种磁电换能器配置（纵向-纵向和纵向-横向模式）的基本性能的理论分析，重点是磁场传感和无线电力传输应用。基于等效电路模型和双端口网络理论，我们推导出磁电电压系数和提供给负载的功率的显式封闭形式解。我们发现，虽然前一种配置表现出用作传感系统的一些优势，但两种方法获得的最大输出功率没有差异。还讨论了如何达到传输功率的上限的问题。研究结果可用作设计最佳系统的通用框架，