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Analysis, modelling, and design of microwave planar ferrite devices and antenna circuits using spectral domain method of moments.

机译:使用矩谱域方法对微波平面铁氧体器件和天线电路进行分析,建模和设计。

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摘要

The objective of this research is to develop the theoretical and numerical models, based on the method of moments, for the analysis of various ferrite microwave devices and antenna circuits. The transmission matrix for a normally biased ferrite layer is derived in a closed form. The Green's function is formulated using the transmission matrix. A 2-D model is implemented to analyze the edge-guided mode microstrip isolator. The resistive film termination over one edge of the microstrip, to absorb the backward wave, is considered in this work. The closed form transmission matrix for any arbitrarily biased ferrite slab is also derived to formulate a very general Green's function for multi-layer arbitrarilly magnetized ferrite structures. Two numerical models are implemented: phase shifter model and a magnetostatic surface wave model. Good agreement with the previously published results is achieved. A novel approach to analyze scattering from arbitrarily shaped patches on arbitrarily biased ferrite substrates is presented. In that approach, the excitation vectors for various single and multi-layer antenna structures are derived in a closed form using the transmission matrix. A 3-D model is implemented to study the Radar Cross Section (RCS) for several ferrite antennas. A novel cross patch antenna is proposed which results in significant RCS reduction.
机译:这项研究的目的是基于矩量法,开发用于分析各种铁氧体微波设备和天线电路的理论和数值模型。常闭型铁氧体层的透射矩阵以封闭形式导出。格林函数使用传输矩阵表示。实现了二维模型以分析边缘引导模式微带隔离器。在这项工作中,考虑了微带一条边缘上的电阻膜终端,以吸收反向波。还推导了任意偏置铁氧体平板的闭合形式的传输矩阵,从而为多层任意磁化铁氧体结构制定了非常通用的格林函数。实现了两个数值模型:移相器模型和静磁表面波模型。与先前发布的结果达成了良好的一致性。提出了一种分析来自任意偏置的铁氧体衬底上任意形状的贴片的散射的新颖方法。在该方法中,使用传输矩阵以封闭形式导出了各种单层和多层天线结构的激励矢量。实施3-D模型来研究多个铁氧体天线的雷达截面(RCS)。提出了一种新颖的交叉贴片天线,其可大大降低RCS。

著录项

  • 作者

    Elshafiey, Tarief M. Fawzy.;

  • 作者单位

    Arizona State University.;

  • 授予单位 Arizona State University.;
  • 学科 Engineering Electronics and Electrical.
  • 学位 Ph.D.
  • 年度 1996
  • 页码 195 p.
  • 总页数 195
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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