论文标题

基于非常高介电常数的介电谐振器与包含水溶液的相互作用的无线电源传输系统的分析

Analysis of a Wireless Power Transfer System Based on the Interaction of Very High Permittivity Dielectric Resonators with a Contained Aqueous Solution

论文作者

Elnaggar, Sameh. Y., Saha, Chinmoy, Antar, Yahia. M. M.

论文摘要

基于耦合模式理论(CMT)的AB-INITIO分析用于描述高介电谐振器(DRS)与其含有水溶液的相互作用动力学。我们证明耦合机制是相互的。利用此类属性以找到耦合系数的封闭形式和准确表达式,这是表征系统性能的主要因素。基于这样的表达式,可以表明,对于无线电源传输(WPT)应用,尺寸尺寸的DRS会放松使用超高介电恒定材料的需求。耦合矩阵捕获了相互作用的性质,这表明系统的行为与文献中在文献中广泛研究的行为相同,当时包含的水溶液被封闭的腔体取代。如在典型的三个耦合谐振器设置中,它遵循的是,当将两个DR插入水溶液中时,出现了非键模模式。因此,通过电磁诱导的透明度(如窗口)的开放来实现有效的无线功率传输(WPT)。由于不可避免地将DRS不对称放置在解决方案内部的情况下,求解了一般特征值问题,具有不对称放置的DR插入物,并且代表代表耦合模式的特征向量被向量描述了3D数学空间中的矢量,其中未耦合的模式代表其基础。此外,DR插入物和水介质之间的强耦合使所提出的WPT系统可以耐用固有的水溶液损失和外部物体的存在。另外,最大效率的负载值与切面溶液损失的无关,从而耐受介质盐度的变化。拟议的EIT类似计划可以在游泳池,化学反应堆,鱼缸等中找到中/短距离功率传输的应用。

An ab-initio analysis based on coupled mode theory (CMT) is applied to describe the interaction dynamics of high dielectric resonators (DRs) with its containing aqueous solution. We prove that the coupling mechanism is reciprocal. Such property is exploited to find closed form and accurate expressions of the coupling coefficient, the main factor characterizing the system performance. Based on such expressions, it is shown that, for wireless power transfer (WPT) applications, up sizing the DRs relaxes the need of using ultra high dielectric constant materials. The nature of interaction is captured by the coupling matrix, which shows that the behaviour of the system is identical to the ones studied extensively in the literature when the contained aqueous solution is replaced by an enclosing cavity. It follows, as in a typical three coupled resonators setting, that when two DRs are inserted in the aqueous solution a non-bonding mode emerges; hence enabling efficient wireless power transfer (WPT) via the opening of an electromagnetic induced transparency like window. Due to the inevitable situations where the DRs are not symmetrically placed inside the solution, the general eigenvalue problem, with asymmetrically placed DR inserts is solved and the eigenvectors representing the coupled modes are depicted by vectors in a 3D mathematical space where the uncoupled modes represent its basis. Moreover, the strong coupling between the DR inserts and the aqueous medium allows the proposed WPT system to tolerate intrinsic aqueous solution losses and the presence of extraneous objects. Additionally, the value of the load at maximum efficiency is independent of the aqueous solution loss tangent, thus tolerating the variation of the medium salinity. The Proposed EIT like scheme can find applications for mid/short range power transfer in/through swimming pools, chemical reactors, fish tanks, etc.

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