大型共形天线阵列的仿真计算

发布时间：2018-02-27 11:34

本文关键词： 矩量法共形天线阵耦合单元因子本征解　出处：《微波学报》2016年S1期 　论文类型：期刊论文

【摘要】：分析设计大型阵列天线阵问题时,由于计算量巨大,很难实现全波方法如矩量法的整体仿真计算。而传统的方向图乘积定理无法考虑阵列单元间的耦合作用,所以无法保证计算的精度。针对这些问题,本文通过分析阵列单元间的耦合作用,提取出考虑耦合作用的单元因子作为阵列的本征解。在提取单元因子过程中,根据单元间耦合强度自适应选取需要考虑的耦合单元数。从而实现了在精度可控的前提下选取尽量少的单元数来减少计算量。分析共形阵列时,通过选择典型单元因子,根据阵面方向及位置进行旋转平移操作后加权组合出整个阵列的方向图。最后采用该方法分析了一个大型圆柱共形阵列天线的辐射特性。
[Abstract]:When analyzing and designing large array antenna array, it is difficult to realize the whole simulation calculation of full-wave method, such as moment method, because of the huge amount of calculation, but the traditional pattern product theorem can not consider the coupling action between array elements. Therefore, the accuracy of calculation cannot be guaranteed. In this paper, by analyzing the coupling between array elements, the element factor considering the coupling effect is extracted as the intrinsic solution of the array. In the process of extracting the element factor, According to the coupling strength between elements, the number of coupling elements should be chosen adaptively to reduce the computational complexity by selecting as few units as possible under the premise of controllable precision. In the analysis of conformal arrays, the typical element factors are selected. The pattern of the whole array is obtained by the rotation and translation operation according to the direction and position of the array. Finally, the radiation characteristics of a large cylindrical conformal array antenna are analyzed by using this method.
【作者单位】：西安电子科技大学天线与微波技术重点实验室;
【基金】：国家自然科学基金(61301069) 教育部新世纪优秀人才支持计划(NCET-13-0949) 中央高校基本科研业务费(JB160218) 国家高技术研究发展计划(863计划)(2012AA01A308)
【分类号】：TN820.15

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