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A formulation and a computational technique for calculating array parameters and element patterns based on the characteristics of an isolated element.

机译:一种基于孤立元素的特征来计算数组参数和元素模式的公式和计算技术。

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摘要

The network parameters and element patterns of an antenna array in the array environment are derived from the radiation characteristics of an isolated element. This derivation, which builds on the theory of minimum scattering (MS) antennas introduced more than 30 years ago by Wasylkiwskyj and Kahn, significantly simplifies the design and analysis of large antenna structures. The mutual impedance between minimum scattering antennas may be computed via an integral over the far field patterns including their values at complex angles. However, measurements or standard numerical codes provide element patterns only for real angles. To overcome this problem far field patterns for real angles are expanded in terms of spherical modes, which are readily continued into the domain of complex angles. Thus allow performing the integrals over complex angles. The developed numerical technique is used to approximate the mutual coupling and element patterns of arrays of parallel dipoles, collinear dipoles, and rectangular probe-fed patch antennas. Its accuracy is compared to the WIPL-D code.
机译:阵列环境中天线阵列的网络参数和元件模式是根据隔离元件的辐射特性得出的。这种推论基于Wasylkiwskyj和Kahn于30年前提出的最小散射(MS)天线理论,极大地简化了大型天线结构的设计和分析。最小散射天线之间的互阻抗可以通过远场方向图上的积分来计算,包括其复角度的值。但是,测量值或标准数字代码仅提供实际角度的元素模式。为了克服这个问题,针对真实角度的远场模式根据球形模式进行了扩展,这些模式很容易延续到复杂角度的范围内。因此,允许在复杂的角度上执行积分。所开发的数值技术用于近似估计平行偶极子,共线偶极子和矩形探测馈电贴片天线阵列的相互耦合和单元模式。将其准确性与WIPL-D代码进行比较。

著录项

  • 作者

    Abdallah, Hossam Ahmed.;

  • 作者单位

    The George Washington University.;

  • 授予单位 The George Washington University.;
  • 学科 Engineering Electronics and Electrical.
  • 学位 D.Sc.
  • 年度 2005
  • 页码 128 p.
  • 总页数 128
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 无线电电子学、电信技术;
  • 关键词

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