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Abstract：
This study developed a metamaterial-inspired split-ring resonator (SRR) based inversion symmetry-shaped structure for airport surveillance radar and local area wireless network applications. The proposed device exhibited suitability for S- and C-band applications, featuring distinct resonance peaks at 2.8 and 4.9 GHz, respectively. The two-layer double negative metamaterial unit cell comprises a copper-based resonator, patch, and a low-loss substrate material known as Rogers RT5800 with a thickness of 1.575 mm. The 8 × 8 mm2 structure unit cell was identified with an effective medium ratio (EMR) of 13.4 at the resonance peak of 2.8 GHz. With the alteration of the metamaterial unit cell structure, the electric field, surface current distribution, magnetic field, and design evolution were observed, analysed, and investigated in this study. Meanwhile, the retrieved data from the reflection and transmission coefficients from CST Microwave Studio were validated using the Ansys High-Frequency Structure Simulator (HFSS) software. A Vector Network Analyzer (VNA) further measured the numerical results. Based on the findings, the proposed novel double negative metamaterial device is suitable for radar communication and satellite applications, especially airport surveillance radar (ASR) and wireless local area network (WLAN), due to its high EMR at the desired resonance frequency.
摘要：
这项研究开发了一种基于超材料启发的开环谐振器（SRR）的反对称形状结构，用于机场监视雷达和局域无线网络应用。所提出的器件对S波段和C波段应用具有适用性，在2.8和4.9GHz具有明显的共振峰，分别。两层双负超材料单元包括铜基谐振器，补丁,以及厚度为1.575mm的低损耗衬底材料，称为RogersRT5800。在2.8GHz的共振峰值处，以13.4的有效介质比（EMR）识别出8×8mm2的结构晶胞。随着超材料晶胞结构的改变，电场,表面电流分布，磁场,并观察到设计演变，分析,并在这项研究中进行了调查。同时,使用Ansys高频结构模拟器（HFSS）软件验证了从CST微波工作室的反射和透射系数中检索到的数据。矢量网络分析仪(VNA)进一步测量了数值结果。根据调查结果,所提出的新型双负超材料器件适用于雷达通信和卫星应用，特别是机场监控雷达(ASR)和无线局域网(WLAN)，由于其高EMR在所需的共振频率。
