论文名称：An Efficient Method for Designing Subarrayed  Phased Arrays With All-Azimuth Wide  Beam-Scanning Range。由具有非对称内部馈电相位的规则子阵构成的子阵化相控阵，因其低成本和较低的设计复杂度而备受关注。然而，由于内部馈电相位设计存在缺陷，此类阵列难以在所有方位面实现宽角扫描，导致在某些方位面出现明显的方向性下降。为实现全方位面宽角扫描，需对内部馈电相位进行优化设计。为此，本文提出了一种指导性理论及高效优化方法。相较于无理论指导的进化算法，所提方法能够将方向图计算问题从准无限维降至一维，从而将优化时间从超过4000小时缩短至8秒。凭借其全方位宽角扫描特性，优化后的子阵化相控阵可将最小波束扫描范围扩大14°，将不同方位面间的方向性下降降低1.7 dB，并在±49°波束扫描范围内将最小方向性提升1.5 dB。文中通过结果展示与对比分析，验证了所提方法的有效性、优越性、特性、适用性及实际可靠性。

工作主要完成人：牟伦位，孙建旭，程钰间。

论文链接：https://ieeexplore.ieee.org/document/11027676

Abstract—The subarrayed phased arrays composed of the regular subarrays with asymmetrical internal feeding phases are attractive because of their low cost and low design complexity. However, due to the imperfect design of the internal feeding phases, they fail to achieve wide beam-scanning ranges in all azimuth planes, resulting in obvious directivity drop in some azimuth planes. To achieve all-azimuth wide beam-scanning range, the internal feeding phases should be optimally designed. To this end, a guiding theory and an efficient method are proposed. Compared with evolutionary algorithms without theoretical guidance, the proposed method can reduce the problem of pattern calculation from quasi-infinite dimension to one dimension and thus reduce the optimization time from more than 4000 h to 8 s. Due to its all-azimuth wide beam-scanning range characteristics, the designed subarrayed phased array can expand the minimum beam-scanning range by 14◦, reduce the directivity drop between different azimuth planes by 1.7 dB, and increase the minimum directivity within the ±49◦ beam-scanning range by 1.5 dB. Results and comparisons are reported and discussed to show the effectiveness, advantages, characteristics, applicability, and practical reliability of the proposed method.

Index Terms—All azimuth, beam-scanning range, internal feeding phases, optimization time, subarray pattern difference.