Synthesis of multiple-pattern planar arrays with A hybrid generalised iterative fast Fourier transform algorithm
Synthesis of multiple-pattern planar arrays with A hybrid generalised iterative fast Fourier transform algorithm
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DOI：
10.1049/iet-map.2014.0595
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发表时间：
2016-01
影响因子：
1.7
通讯作者：
Wentao Li;Y. Hei;Jing Yang;Xiao-wei Shi
中科院分区：
文献类型：
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作者：
Wentao Li;Y. Hei;Jing Yang;Xiao-wei Shi
本研究探讨多方向图周期性纯相位控制平面阵列的综合。提出了一种混合广义迭代傅立叶技术，利用二维Woodward-Lawson方法生成良好的初始值，有效地从给定的阵元因子迭代得到阵元激励。在综合过程中，保持激励幅值不变，通过改变不同阵列方向图对应的相位，得到纯相位控制可重构阵列。通过研究幅相误差对辐射方向图的影响，验证了该算法的鲁棒性。最后，通过三个不同类型的可重构算例验证了该方法的有效性.仿真结果表明，该算法在处理多方向图阵列时具有良好的上级性能、有效性和鲁棒性。
This study investigates the synthesis of multiple-pattern periodic phase-only control planar arrays. A hybrid generalised iterative Fourier technique is proposed to iteratively derive the array element excitations efficiently from the prescribed array factor, in which the two-dimensional Woodward-Lawson method is employed in order to generate good initial values. During the synthesis process, the phase-only control reconfigurable array is obtained by changing the corresponding phase for different array patterns while keeping the excitation amplitude constant. The robustness of the proposed algorithm has been testified by investigating the sensitivity of the radiation pattern affected by the amplitude and phase errors. Furthermore, three totally different types of reconfigurable numerical examples are discussed to validate the proposed method. Simulation results reveal the superior performance, the efficiency and the robustness of the proposed algorithm in dealing with multiple-pattern arrays.