利用工作在渠化区的金属丝介质板放大微波频率下的亚波长场分布
Magnification of Subwavelength Field Distributions at Microwave Frequencies Using a Wire Medium Slab Operating in the Canalization Regime
摘要：
放大亚波长场分布，使用线介质板在渠化制度的表现出使用数值模拟。放大板是通过径向扩大相邻导线之间的距离来实现的，并且工作频率被调谐为与法布里-珀罗谐振条件一致。在大致对应于$3λ$的电距离上，使复杂形状源的近场分布渠化，并且将分布细节放大三倍。在偏离法布里-珀罗共振的几个频率下研究了平板的操作。
英文摘要：
Magnification of subwavelength field distributions using a wire medium slab operating in the canalization regime is demonstrated using numerical simulations. The magnifying slab is implemented by radially enlarging the distance between adjacent wires, and the operational frequency is tuned to coincide with the Fabry-Perot resonance condition. The near-field distribution of a complex-shaped source is canalized over an electrical distance corresponding roughly to $3λ$, and the distribution details are magnified by a factor of three. The operation of the slab is studied at several frequencies deviating from the Fabry-Perot resonance.
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