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Design of wideband concentric-ring arrays with three-dimensional beam scanning based on the optimization of array geometry

机译:基于阵列几何优化的三维光束扫描宽带同心环阵列设计

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Absract Optimization design of wideband concentric-ring arrays for three-dimensional beam scanning with a minimum peak side-lobe level is addressed in this article. To obtain three-dimensional beam scanning with the lowest peak side-lobe level over a wide bandwidth, concentric-ring array geometries, i.e., radius and inter-element spacing of each ring, are optimized. Optimal array geometries are solved via the differential evolution algorithm, and the results are presented for wideband concentric-ring arrays with different scan angles. The peak side-lobe level of the optimal wideband concentric-ring arrays dropped significantly compared to the periodic arrays after geometry optimization was performed. In addition, the comparison with the periodic wideband array shows that not only does the optimal wideband concentric-ring array have a comparable directivity, but the number of elements is also saved.
机译:本文讨论了宽带同心环阵列用于具有最小峰值旁瓣电平的三维光束扫描的抽象优化设计。为了获得在宽带宽上具有最低峰值旁瓣电平的三维束扫描,优化了同心环阵列的几何形状,即每个环的半径和元件间距。通过差分演化算法求解最佳阵列几何形状,并给出了具有不同扫描角度的宽带同心环阵列的结果。与进行几何优化之后的周期阵列相比,最佳宽带同心环阵列的峰值旁瓣电平显着下降。另外,与周期宽带阵列的比较表明,最佳宽带同心环阵列不仅具有可比的方向性,而且还节省了元件的数量。

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