具有动态范围比控制的平顶高斯阵列

Goran Molnar, Dorian Ljubenko, Mile Šakić
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引用次数: 1

摘要

形成平顶波束的天线阵列的设计更倾向于鲁棒和计算效率高的方法。这些特征通常可以通过分析技术或简单的优化程序来满足。另一方面,在平顶阵列设计中,一个共同的要求是能够控制波束方向图宽度和旁瓣电平。然而,它通常会带来高动态范围比或不可预测的激励系数。本文提出了一种设计动态范围比可控的对称平顶阵列的简单方法。该方法基于高斯激励对具有最大平坦主梁的阵列的二次变换。此外,该方法还处理了零系数,利用零系数的位置来控制动态范围比。作为特殊情况,可以得到动态范围比最小的平顶高斯阵列。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Flat- Top Gaussian Arrays with Dynamic Range Ratio Control
The design of antenna arrays forming flat-top beampatterns prefers robust and computationally efficient methods. These features are usually met by analytical techniques or simple optimization procedures. On the other hand, in the flat-top array design, a common requirement is the ability to control the beampattern width and sidelobe level. However, it usually brings the excitation coefficients with high or unpredictable dynamic range ratio. In this paper, the authors propose a straightforward method for the design of symmetrical flat-top arrays with controllable dynamic range ratio. The method is based on the quadratic transform of a Gaussian excitation to the array having maximally flat main beam. In addition, the method deals with zero coefficients, whose positions are used to control the dynamic range ratio. As a special case, flat-top Gaussian arrays with minimum dynamic range ratio are obtained.
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