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首页> 外文期刊>Applied Computational Electromagnetics Society journal >Analysis of Multi-Layer Composite Cavity Using FEKO
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Analysis of Multi-Layer Composite Cavity Using FEKO

机译：基于FEKO的多层复合材料型腔分析

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摘要

Modeling of a large cavity containing multiple layers inside the structure has been studied using equivalent impedance approximations along with simplified single ray tracing analysis. This modeling effort investigates the effects of radiating with a source enclosed in a large vacant composite structure relative to a short wavelength. The development of the model involves the completion of a two step process. First, the heritage geometric reduction and approximation is investigated. This particular investigation involves an approach that is an application of Poynting's Theorem. This work was performed by Hallett and Reddell at Goddard Space Flight Center in 1998. For this comparison, the Multi-Level Fast Multipole Method (MLFMM) available in the commercial tool FEKO, is used to model a generic multi-layer payload fairing (hollow cone connected to a hollow cylinder) with a radiating source to determine the resonant cavity effects within the fairing as another approximation baseline. The intent is to provide predictions for the electric field levels if a transmitter in the fairing either deliberately or unintentionally is activated. The results show a comparison with the heritage calculation and FEKO software tool. However, FEKO shows the electric field distributions within the composite fairing cavity instead of a single average value.
机译：使用等效阻抗近似以及简化的单射线跟踪分析，研究了结构内部包含多层的大空腔的建模。该建模工作研究了封闭在大的空的复合结构中的光源相对于短波长的辐射效果。模型的开发涉及两步过程的完成。首先，研究了遗产的几何约简和近似。这项特殊的研究涉及一种方法，该方法是Poynting定理的一种应用。这项工作是由哈雷特（Hallett）和雷德尔（Reddell）于1998年在戈达德太空飞行中心完成的。为了进行比较，商用工具FEKO中提供的多级快速多极方法（MLFMM）用于对通用多层有效载荷整流罩（空心）进行建模。圆锥体连接到带有辐射源的空心圆柱体），以确定整流罩内的谐振腔效应，作为另一个近似基线。目的是如果有意或无意中激活了整流罩中的发射器，则可提供电场水平的预测。结果显示与遗产计算和FEKO软件工具进行了比较。但是，FEKO显示的是复合整流罩腔内的电场分布，而不是单个平均值。

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  • 作者

    James E. Stanley; Dawn H. Trout; Susan K. Earles; Ivica N. Kostanic; Parveen F. Wahid;

  • 作者单位

    Department of Electrical and Computer Engineering Florida Institute of Technology, Melbourne, FL 32901. USA;

    School of Electrical Engineering and Computer Science University of Central Florida, Orlando, FL 32816-2450, USA;

    Department of Electrical and Computer Engineering Florida Institute of Technology, Melbourne, FL 32901. USA;

    Department of Electrical and Computer Engineering Florida Institute of Technology, Melbourne, FL 32901. USA;

    School of Electrical Engineering and Computer Science University of Central Florida, Orlando, FL 32816-2450, USA;

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  • 正文语种 eng
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  • 关键词

    inhibits; resonant cavity; FEKO; EM compatibility;

    机译：抑制谐振腔FEKO;EM兼容性;

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