This paper presents an efficient approach for the design of a non-uniform single ring circular antenna array (CAA) for the synthesis of the optimal far-field radiation pattern. A recently proposed meta-heuristic-based optimization technique known as ant lion optimization (ALO) is applied in this paper to determine the optimum set of current amplitude excitation weights and the inter-element distance among the array elements to reduce the side lobe level (SLL) and 3-dB beam width considering the mutual coupling effect. The results achieved by employing the ALO algorithm are compared with the uniform radiation pattern and with those of the recently reported literature containing equal sets of elements to prove the superiority of ALO algorithm. Three different design examples of 8, 10, and 12 elements CAA are presented, and their performances are compared to illustrate the capability of the ALO algorithm-based approach over those of the recently reported literature.

中文翻译：

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考虑相互耦合的优化圆形天线阵列设计采用蚁狮优化

本文提出了一种设计非均匀单环圆形天线阵列 (CAA) 的有效方法，用于合成最佳远场辐射方向图。本文应用了最近提出的基于元启发式的优化技术，称为蚁狮优化 (ALO)，以确定电流幅度激励权重的最佳集合和阵列元素之间的元素间距离，以降低旁瓣水平。 SLL）和 3-dB 波束宽度，考虑到互耦合效应。将采用 ALO 算法获得的结果与均匀辐射方向图以及最近报道的包含相同元素集的文献进行比较，以证明 ALO 算法的优越性。介绍了 8、10 和 12 元素 CAA 的三个不同设计示例，