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Electromagnetic Topology Analysis to Coupling Wires Enclosed in Cavities with Apertures

机译：带孔的封闭线耦合电磁拓扑分析

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摘要

We use both electromagnetic topology (EMT) and the Baum-Liu-Tesche (BLT) equation to analyze a cavity model with an aperture. More precisely, we combine the aperture coupling theory and EMT to study the issues of the electromagnetic field penetration through apertures into a cavity and the coupling to a two-wire transmission line in it. We employ the equivalence principle to establish the equivalent source on the aperture. Then, we obtain the semi analytic solutions of the load response of the two-wire line in the cavity based on the Baum-Liu-Tesche (BLT) equation. In addition, based on the Agrawal model, we give the coupling current distribution at two loads for a two-wire line in the cavity. Finally, we present some numerical results to demonstrate the semi-analytic approach of this paper. In fact, these numerical results on the electric field shielding (EFS) of a rectangular cavity with an aperture agree well with the experimental results in the literature. Furthermore, for a two-wire line in the cavity with an aperture the induced current peaks at loads are observed in the frequency range, some of which are associated with the resonance of the aperture, and others correspond to the resonant frequencies of the cavity.
机译：我们同时使用电磁拓扑（EMT）和Baum-Liu-Tesche（BLT）方程来分析具有孔径的腔模型。更准确地说，我们结合了孔径耦合理论和EMT，研究了电磁场穿过孔径进入腔体以及耦合到其中的两线传输线的问题。我们采用等效原理在光圈上建立等效光源。然后，我们根据Baum-Liu-Tesche（BLT）方程获得了两线制线在腔中的载荷响应的半解析解。此外，基于Agrawal模型，我们给出了空腔中两线制导线在两个负载下的耦合电流分布。最后，我们提供一些数值结果来证明本文的半解析方法。实际上，这些关于带孔矩形腔的电场屏蔽（EFS）的数值结果与文献中的实验结果非常吻合。此外，对于具有孔的腔中的两线线，在频率范围内观察到负载处的感应电流峰值，其中一些与孔的共振相关，而其他则与腔的共振频率相对应。

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  • 来源
    《Mathematical Problems in Engineering》 |2010年第3期|p.39-49|共11页
  • 作者

    Ying Li; Jianshu Luo; Guyan Ni; Jiyuan Shi;

  • 作者单位

    Department of Mathematics and System Science, College of Science, National University of Defense Technology, Changsha, Hunan 410073, China;

    Department of Mathematics and System Science, College of Science, National University of Defense Technology, Changsha, Hunan 410073, China;

    Department of Mathematics and System Science, College of Science, National University of Defense Technology, Changsha, Hunan 410073, China;

    Department of Mathematics and System Science, College of Science, National University of Defense Technology, Changsha, Hunan 410073, China;

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