This study aimed to produce a miniaturised double negative metamaterial with a lower resonance frequency. Therefore, a new combination of a multi-circular ring connected with octagonal shape ring metamaterial was developed on a 9 × 9 mm² dielectric substrate material with a thickness of 1.6 mm, named the Flame Retardant 4 (FR-4). While the selected frequency ranged between 0 and 18 GHz for the unit and array metamaterial design. Numerical simulation was used for the design and analysis of the proposed metamaterial. A few analysis were performed to validate the performance of the new design including the analyses of the different dimensions of the substrate and varying widths of the split gaps. The proposed design structure manifested resonance frequencies at S, X and Ku-bands. The resonance frequency at S-band (3.31 GHz) and X-band (8.60 GHz) presented double-negative (DNG) metamaterial behaviour while X-band (11.93 GHz) and Ku-band (12.99 GHz) presented single-negative (SNG) medium characteristics. The simulation and measured results almost coincided with each other. The compactness of the proposed design was proven by the effective medium ratio (EMR) of 10.07. In conclusion, the miniaturised structure can be accredited for satellite communication and radar applications.

这项研究旨在生产一种具有较低共振频率的小型双负超材料。因此，在9×9 mm ²上开发了多圆环与八角形环超材料连接的新组合。厚度为1.6毫米的介电基板材料，称为阻燃剂4（FR-4）。单元和阵列超材料设计的选定频率范围是0到18 GHz。数值模拟用于所提出的超材料的设计和分析。进行了一些分析，以验证新设计的性能，其中包括对基板不同尺寸和不同缝隙宽度的分析。所提出的设计结构在S，X和Ku频段表现出共振频率。S波段（3.31 GHz）和X波段（8.60 GHz）的共振频率呈现双负（DNG）超材料性能，而X波段（11.93 GHz）和Ku波段（12.99 GHz）呈现单负（SNG） ）媒体特征。模拟和测量结果几乎彼此一致。拟议设计的紧凑性已通过有效介质比率（EMR）为10.07证明。总而言之，微型结构可以被认可用于卫星通信和雷达应用。