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Design, Full-Wave Analysis, and Near-Field Diagnostics of Reflectarray Antennas

机译:反射阵列天线的设计,全波分析和近场诊断

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摘要

This article presents a detailed procedure for design, modeling, full-wave simulation, and near-field diagnostics of reflectarray antennas, through a case study of a Ka-band reflectarray antenna with 437 elements. A comparison between analytical approaches and full-wave simulations for reflectarray radiation analysis is also presented, illustrating the necessity of full-wave approaches for an accurate analysis. Furthermore, the phase shift provided by the phasing elements, in the real reflectarray configuration, is analyzed by using the near-field data from the full-wave simulation. This provides a means to diagnose a designed reflectarray, and identify phasing elements that are not providing the required phase shift. The effectiveness of the diagnostic approach is demonstrated through numerical examples.
机译:本文通过对具有437个元件的Ka波段反射阵列天线的案例研究,介绍了反射阵列天线的设计,建模,全波仿真和近场诊断的详细过程。还介绍了用于反射阵列辐射分析的分析方法与全波模拟之间的比较,说明了进行精确分析的全波方法的必要性。此外,通过使用来自全波模拟的近场数据来分析实际反射阵列配置中由定相元件提供的相移。这提供了一种诊断设计的反射阵列并识别未提供所需相移的定相元件的方法。通过数值示例证明了诊断方法的有效性。

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    Center of Applied Electromagnetic Systems Research Department of Electrical Engineering University of Mississippi, University, MS 38677-1848, USA;

    Center of Applied Electromagnetic Systems Research Department of Electrical Engineering University of Mississippi, University, MS 38677-1848, USA;

    Center of Applied Electromagnetic Systems Research Department of Electrical Engineering University of Mississippi, University, MS 38677-1848, USA,Microwave and Antenna Institute Electronic Engineering Department Tsinghua University, Beijing 100084, China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    far-field; near-field; radiation pattern; and reflectarray;

    机译:远处的荒(田)野;近场;辐射图和reflectarray;

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