An iterative FFT based flat-top footprint pattern synthesis method with planar array
An iterative FFT based flat-top footprint pattern synthesis method with planar array
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DOI：
10.1080/09205071.2012.722752
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发表时间：
2012-09
影响因子：
1.3
通讯作者：
K. Yang;Z. Zhao;Q. Liu
中科院分区：
文献类型：
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作者：
K. Yang;Z. Zhao;Q. Liu
提出了一种用于任意足迹平顶图案的图案合成技术。该技术是基于迭代快速傅里叶变换（FFT）方法和艾略特-斯特恩方法。由于阵列激励与阵列因子之间存在傅里叶变换对关系，采用迭代FFT方法对阵列因子进行迭代调整以获得期望的方向图。为了提高该方法的速度和鲁棒性，将傅里叶变换应用于由埃利奥特-斯特恩方法设计的图形，得到初始单元激励。数值模拟验证了该方法的有效性。
A pattern synthesis technique for the flat-top pattern with an arbitrary footprint is proposed in this paper. This technique is based on an iterative fast Fourier transform (FFT) method and the Elliott–Stern method. Due to the Fourier transformation-pair relationship between the array excitations and the array factor, the iterative FFT method is used to adjust the array factor iteratively to obtain the desired pattern. To accelerate this method and to make this method more robust, the initial element excitations are obtained by applying Fourier transform to a pattern designed by the Elliott–Stern method. Several numerical simulations are applied to validate the effectiveness of this technique.