Islam Sikder Sunbeam, Faruque Mohammad Rashed Iqbal, Islam Mohammad Tariqul
Centre for Space Science, Research Centre Building, Universiti Kebangsaan Malaysia, Bangi, Selangor D.E. 43600, Malaysia.
Department of Electrical, Electronic and Systems Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi, Selangor D.E. 43600, Malaysia.
Materials (Basel). 2014 Jul 2;7(7):4994-5011. doi: 10.3390/ma7074994.
This paper presents the design and analysis of a novel split-H-shaped metamaterial unit cell structure that is applicable in a multi-band frequency range and that exhibits negative permeability and permittivity in those frequency bands. In the basic design, the separate split-square resonators are joined by a metal link to form an H-shaped unit structure. Moreover, an analysis and a comparison of the 1 × 1 array and 2 × 2 array structures and the 1 × 1 and 2 × 2 unit cell configurations were performed. All of these configurations demonstrate multi-band operating frequencies (S-band, C-band, X-band and K-band) with double-negative characteristics. The equivalent circuit model and measured result for each unit cell are presented to validate the resonant behavior. The commercially available finite-difference time-domain (FDTD)-based simulation software, Computer Simulation Technology (CST) Microwave Studio, was used to obtain the reflection and transmission parameters of each unit cell. This is a novel and promising design in the electromagnetic paradigm for its simplicity, scalability, double-negative characteristics and multi-band operation.
本文介绍了一种新型分裂 H 形超材料单元结构的设计与分析,该结构适用于多频段频率范围,并且在这些频段中表现出负磁导率和负介电常数。在基本设计中,单独的分裂方环谐振器通过金属连接相连,形成一个 H 形单元结构。此外,还对 1×1 阵列和 2×2 阵列结构以及 1×1 和 2×2 单元配置进行了分析和比较。所有这些配置都展示了具有双负特性的多频段工作频率(S 波段、C 波段、X 波段和 K 波段)。给出了每个单元的等效电路模型和测量结果,以验证谐振行为。使用基于商业有限差分时域(FDTD)的仿真软件——计算机仿真技术(CST)微波工作室,来获取每个单元的反射和传输参数。由于其简单性、可扩展性、双负特性和多频段工作,这是电磁范式中一种新颖且有前景的设计。