Beam steering performance of compressed Luneburg lens based on transformation optics
Beam steering performance of compressed Luneburg lens based on transformation optics
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DOI：
10.1016/j.rinp.2018.01.016
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发表时间：
2018-06
影响因子：
5.3
通讯作者：
Ju Gao;Cong Wang;Kuang Zhang;Y. Hao;Qun Wu
中科院分区：
文献类型：
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作者：
Ju Gao;Cong Wang;Kuang Zhang;Y. Hao;Qun Wu
本文研究并模拟了两种基于变换光学的压缩吕讷堡透镜，采用波导和偶极子两种不同的光源，分别代表平面和球面波源。我们确定了最大光束转向角和相应的进给点是某型压缩鲁讷堡透镜的固有特性，而进给点与透镜之间的最佳距离、增益增强和旁瓣抑制与光源类型有关。根据我们的研究结果，我们预计这些透镜将在未来的各种天线应用中被证明是有用的。
In this paper, two types of compressed Luneburg lenses based on transformation optics are investigated and simulated using two different sources, namely, waveguides and dipoles, which represent plane and spherical wave sources, respectively. We determined that the largest beam steering angle and the related feed point are intrinsic characteristics of a certain type of compressed Luneburg lens, and that the optimized distance between the feed and lens, gain enhancement, and side-lobe suppression are related to the type of source. Based on our results, we anticipate that these lenses will prove useful in various future antenna applications.