CONTROLLING SURFACE STATES OF PLANAR METAMATERIAL BASED ON MOIRE EFFECT

IF 0.7 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Progress in Electromagnetics Research M Pub Date : 2019-06-06 DOI:10.2528/pierm19060708
S. Polevoy, S. Tarapov
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Abstract

The possibility of continuous tuning of the spectral properties of two types of planar metamaterials based on the moire effect by changing their geometric parameters is demonstrated both experimentally and numerically. It is shown that for a one-dimensional moire metamaterial obtained by superposition of two microstrip photonic crystals with close periods, the position of the stop band in the spectrum can be controlled by changing these periods. For the two-dimensional moire metamaterial formed by two identical periodic crossed structures with hexagonal symmetry, the ability to control the frequency of the surface state mode by changing the crossing angle of these structures relative to each other has been experimentally and numerically shown. It is numerically demonstrated that if the moire metamaterial is irradiated by the horn antenna, a surface wave propagating in the metamaterial plane appears in all directions beginning from its intersection point with the axis of the incident wave beam. From the application point of view, moire metamaterials of this type can be considered as promising prototype of microwave filters, whose spectral properties can be continuously and smoothly mechanically rearranged.
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基于云纹效应的平面超材料表面态控制
实验和数值证明了基于云纹效应通过改变两类平面超材料的几何参数来连续调谐其光谱特性的可能性。结果表明,对于由两个周期闭合的微带光子晶体叠加得到的一维云纹超材料,可以通过改变周期来控制光谱中止动带的位置。对于由两个具有六边形对称性的相同周期交叉结构组成的二维云纹超材料,通过改变这些结构的相对交叉角来控制表面态模式的频率的能力得到了实验和数值证明。数值计算表明,当云纹超材料被喇叭天线照射时,在超材料平面上出现从其与入射波束轴线相交点开始向各个方向传播的表面波。从应用的角度来看,这类云纹超材料可以被认为是一种很有前途的微波滤波器原型,其光谱性质可以连续、平稳地进行机械重排。
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来源期刊
Progress in Electromagnetics Research M
Progress in Electromagnetics Research M Materials Science-Electronic, Optical and Magnetic Materials
CiteScore
2.50
自引率
10.00%
发文量
114
期刊介绍: Progress In Electromagnetics Research (PIER) M publishes peer-reviewed original and comprehensive articles on all aspects of electromagnetic theory and applications. Especially, PIER M publishes papers on method of electromagnetics, and other topics on electromagnetic theory. It is an open access, on-line journal in 2008, and freely accessible to all readers via the Internet. Manuscripts submitted to PIER M must not have been submitted simultaneously to other journals.
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