Synthesis of nonuniform linear antenna arrays using a hybrid optimization algorithm

Hua Guo, Ying Liang, Qiming Mi, Peng Song, Lijian Zhang and Yongyong Han

Journal of Electromagnetic Waves and Applications, 2024, vol. 38, issue 17, 1921-1939

Abstract: A hybrid algorithm is introduced to synthesize the nonuniform symmetric linear antenna arrays in this paper. The array element positions and excitation coefficients of the antenna arrays are optimized by using Gray Wolf Algorithm (GWO) and Convex Optimization Algorithm (CO). In order to further reduce the sidelobe level, the linear antenna array is divided into several subarrays under the constraints of element number, aperture size and minimum adjacent element spacing. Array element positions, excitation coefficients of each subarray and the element number of each subarray are optimized simultaneously. Finally, the optimization results are compared with the results obtained by other literatures. It is obviously found that the method proposed in this paper can obtain lower sidelobe level under the same conditions. So, the effectiveness and feasibility of the algorithm proposed in this paper is proved.

Date: 2024
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DOI: 10.1080/09205071.2024.2406943

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