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Cross coupled interlinked split ring resonator based epsilon negative metamaterial with high effective medium ratio for multiband satellite and radar communications
Results in Physics ( IF 5.3 ) Pub Date : 2020-08-11 , DOI: 10.1016/j.rinp.2020.103296
Md. Moniruzzaman , Mohammad Tariqul Islam , Md. Tarikul Islam , Muhammad E.H. Chowdhury , Hatem Rmili , Md. Samsuzzaman

In this paper, a cross coupled interlinked split ring resonator based (CCI-SRR) based metamaterial has been presented. Epsilon negative (ENG) with a highly effective medium ratio (EMR) is attained in this metamaterial. The metamaterial unit cell consists of one square shaped split ring resonator and two rectangular rings. The rectangular rings reside within the outer square split ring. Two internal rings are coupled together by using a cross-shaped metal segment. These inner rings are also interlinked to the outer ring by using metal strips. Coupling causes to increase the electrical length and modifies the inductance of the unit cell. Multiple resonances covering C, X and Ku-band are achieved due to the interconnection of rings. The symmetric nature of the CCI-SRR unit cell exhibits unique quality to minimize noise and harmonics effect. The unit cell is designed on FR4 substrate with a thickness of 1.6 mm. The overall dimension of the unit cell is 0.124λ × 0.124λ, where λ is the wavelength calculated at a lower resonance frequency of 4.15 GHz. Three resonances are obtained for |S21| at frequencies of 4.15 GHz, 10.38 GHz and 14.93 GHz performing numerical simulation in CST microwave studio. Permittivity, permeability, refractive index and impedance are explored by using the Newton-Ross-Weir (NRW) method. ENG performance is observed in frequencies ranging from 3.95 to 5.65 GHz, 9.57–11.46 GHz, 13.68–16 GHz. Near-zero refractive index is attained within the frequency ranges, 4.16–5.75 GHz, 10.16–11.58 GHz, 14.46–16 GHz. An LC equivalent circuit is designed, and component values are achieved by Advanced Design Software (ADS) justifying |S21| with CST result. The study of electromagnetic wave interaction between the unit cell and the double positive medium reveals that the unit cell exhibits evanescent wave properties. The compact nature of the unit cell is confirmed by calculating EMR with a value of 8.03. The electromagnetic coupling effect is examined for 2 × 2 array in various orientations. The |S21| performance of 2 × 2, 4 × 4 and 8 × 8 is matched with the unit cell. Due to symmetric patterns, near-zero refractive index, negative permittivity and high EMR, the proposed unit cell can be used to enhance the performance of microwave devices used for C, X and Ku-bands, especially Satellite and Radar communications.



中文翻译:

基于交叉耦合的交联裂环谐振器的ε负超材料,具有高有效介质比,适用于多波段卫星和雷达通信

在本文中,提出了一种基于交叉耦合的互连裂环谐振器(CCI-SRR)的超材料。在这种超材料中获得了具有高效介质比率(EMR)的Epsilon阴性(ENG)。超材料单元电池由一个正方形的裂环谐振器和两个矩形环组成。矩形环位于外部方形开口环内。两个内部环通过使用十字形金属段连接在一起。这些内环还通过使用金属条与外环互连。耦合导致电气长度增加并改变了单元电池的电感。由于环的互连,实现了覆盖C,X和Ku波段的多重共振。CCI-SRR晶胞的对称性质具有独特的质量,可最大程度地减少噪声和谐波效应。晶胞设计在FR4基板上,厚度为1.6 mm。晶胞的整体尺寸为0.124λ×0.124λ,其中λ是在4.15 GHz的较低谐振频率下计算的波长。| S获得三个共振21 | 在CST微波工作室中以4.15 GHz,10.38 GHz和14.93 GHz的频率进行数值模拟。介电常数,磁导率,折射率和阻抗使用牛顿-罗斯-威尔(NRW)方法进行了探索。ENG性能在3.95至5.65 GHz,9.57-11.16 GHz,13.68-16 GHz范围内观察到。在4.16–5.75 GHz,10.16–11.58 GHz,14.46–16 GHz频率范围内可获得接近零的折射率。设计了LC等效电路,并通过证明| S 21的高级设计软件(ADS)实现了元件值| CST结果。对晶胞与双正电介质之间电磁波相互作用的研究表明,晶胞表现出van逝波特性。通过计算值为8.03的EMR可以确定晶胞的紧凑性。检查2×2阵列在不同方向上的电磁耦合效应。| S 21 | 2×2、4×4和8×8的性能与单位电池匹配。由于对称的图案,接近零的折射率,负介电常数和高EMR,建议的晶胞可用于增强用于C,X和Ku频段的微波设备的性能,尤其是卫星和雷达通信。

更新日期:2020-08-19
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