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arXiv 2103.04362physics.app-ph
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按需多功能元表面的半解析综合方案

Semianalyitcal synthesis scheme for multifunctional metasurfaces on demand

Vinay K. Killamsetty, Ariel Epstein

摘要:

我们提出了一个全面的领域为基础的半分析方法设计制造准备多功能周期性元表面(MS)。利用最近的工作多元素metagratings的基础上的电容加载条,我们已经扩展了我们以前的元原子设计配方,以产生现实的基板支持的印刷电路板布局的异常折射MS。随后,我们应用贪婪算法迭代优化整个宏周期的单个散射体,以实现多个设计目标,对应的多个入射角与一个单一的MS结构。商业求解器验证,建议的半解析方案,适当占近场之间的各种散射体的耦合,可以可靠地产生高效的多功能MS的需求,而不需要耗时的全波优化。

英文摘要:

We propose a comprehensive field-based semianalytical method for designing fabrication-ready multifunctional periodic metasurfaces (MSs). Harnessing recent work on multielement metagratings based on capacitively-loaded strips, we have extended our previous meta-atom design formulation to generate realistic substrate-supported printed-circuit-board layouts for anomalous refraction MSs. Subsequently, we apply a greedy algorithm for iteratively optimizing individual scatterers across the entire macroperiod to achieve multiple design goals for corresponding multiple incidence angles with a single MS structure. As verified with commercial solvers, the proposed semianalytical scheme, properly accounting for near-field coupling between the various scatterers, can reliably produce highly efficient multifunctional MSs on demand, without requiring time-consuming full-wave optimization.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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