论文标题
跨表面镜头的理论和模拟，用于扩展分阶段阵列的角度扫描范围
Theory and Simulation of Metasurface Lenses for Extending the Angular Scan Range of Phased Arrays
论文作者
论文摘要
最近的元表面开发导致了他们考虑扩展分阶段阵列的角度扫描范围的考虑。本文认为使用Huygens的Metasurfaces作为完成任务的镜头。射线光学器件用于发现单个镜头如何扩展扫描范围。结果表明，单个扫描扩展镜头会导致原始梁的广泛方向性降解。该方向性降解的定量表征是所需的角扫描范围扩展的函数。提出了一种模拟相边界的方法，并用于验证理论主张。提出和模拟了Huygens的跨表面镜头设计，以进一步验证理论预测，并表明这种镜头在物理上是可实现的。
Recent metasurface developments have led to their consideration for extending the angular scan range of phased arrays. This paper considers the use of Huygens' metasurfaces as lenses to accomplish the task. Ray optics is used to uncover how a single lens can extend the scan range. It is shown that a single scan extending lens leads to a broadside directivity degradation of the original beam. This directivity degradation is quantitatively characterized as a function of the desired angular scan-range expansion. A method of simulating phase boundaries is presented and used to verify the theoretical claims. A Huygens' metasurface lens design is presented and simulated to further validate the theoretical predictions and show that such lenses are physically realizable.
