论文标题
具有电容记忆的可重新配置反射元图的分析和数值建模
Analytical and numerical modeling of reconfigurable reflecting metasurfaces with capacitive memory
论文作者
论文摘要
在本文中，我们开发了用于反映由棋盘图案图案的金属斑块形成的可重构的分析模型。这些斑块阵列装有变量二极管，以实现表面阻抗和反射相控制。考虑了两种类型的分析模型。基于有效培养基方法的第一个模型用于预测跨表面反射率。第二个模型是相同结构的Bloch波色散模型，该模型被理解为二维传输线超材料。后一种模型用于研究抑制有限大小的跨度元面中寄生共振的方法。我们通过全波数值模拟验证开发的分析模型。最后，我们概述了具有电容性内存的元图控制网络的设计，该设计可能允许对光束成形元图的单个单位单元单元的独立编程。
In this article, we develop analytical-numerical models for reconfigurable reflecting metasurfaces formed by chessboard-patterned arrays of metallic patches. These patch arrays are loaded with varactor diodes in order to enable surface impedance and reflection phase control. Two types of analytical models are considered. The first model based on the effective medium approach is used to predict the metasurface reflectivity. The second model is the Bloch wave dispersion model for the same structure understood as a two-dimensional transmission line metamaterial. The latter model is used to study ways to suppress parasitic resonances in finite-size beamforming metasurfaces. We validate the developed analytical models with full-wave numerical simulations. Finally, we outline a design of the metasurface control network with capacitive memory that may allow for independent programming of individual unit cells of the beamforming metasurface.
