基于Harris Hawks优化的双频选择性表面设计

A. Boursianis, M. Salucci, S. Koulouridis, A. Georgiadis, M. Tentzeris, S. Goudos
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引用次数: 3

摘要

频率选择表面(fss)是一种周期性结构,设计用于反射、吸收或传输可变频率范围内的电磁场。它们的性能在很大程度上取决于它们的基本结构,即晶胞。在本文中,我们利用吸收特性设计了一种适用于室内射频能量收集系统的双频FSS。我们结合了Harris Hawk优化(HHO)算法和高频电磁求解器的优化技术来优化单元格和整个FSS的几何形状。该系统工作在Wi-Fi 2.4 GHz和Wi-Fi 5 GHz频段。数值结果表明,优化后的FSS具有令人满意的效果,是射频能量收集应用的理想选择。
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Dual-Band Frequency Selective Surface Design Using Harris Hawks Optimization
Frequency Selective Surfaces (FSSs) are periodic structures that are designed to reflect, absorb or transmit electromagnetic fields in a variable frequency range. Their performance is strongly dependent on their fundamental structure, i.e. the unit cell. In this paper, we exploit the characteristic of absorption to design a dual-band FSS suitable for indoor RF energy harvesting systems. We combine an optimization technique by utilizing the Harris Hawk Optimization (HHO) algorithm and a high-frequency electromagnetic solver to optimize the geometry of the unit cell and the overall FSS. The proposed system operates in the frequency bands of Wi-Fi 2.4 GHz and Wi-Fi 5 GHz. Numerical results demonstrate that the optimized FSS exhibits quite satisfactory results and makes it a suitable candidate for RF energy harvesting applications.
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