ABSTRACT

The paper presents a novel fractal antenna in millimetre wavebands for 5 G applications involving the fusion of Koch and Sierpinski methods. A 4-element MIMO antenna is designed using the unique fractal structure. The proposed four-element MIMO antenna operates from 27.55 GHz to 28.6 GHz with resonant frequency at 28 GHz and the obtained mutual coupling between the MIMO elements is well below -25 dB. The performance of the antenna is characterised in MIMO environment by studying the important MIMO parameters like Envelope Correlation Coefficient (ECC), Channel Capacity Loss (CCL), Mean Effective Gain (MEG)and Total Active Reflection Coefficient (TARC). The proposed antenna is highly suitable for 5 G applications in the mmwave spectrum owing to its stable and directional radiation patterns on both the E and H planes. A prototype of the proposed model is fabricated and measured results are obtained with good matching to the simulated results.

摘要

该论文提出了一种适用于 5G 应用的新型毫米波段分形天线，涉及科赫方法和谢尔宾斯基方法的融合。采用独特的分形结构设计了 4 元件 MIMO 天线。所提出的四元件 MIMO 天线工作频率为 27.55 GHz 至 28.6 GHz，谐振频率为 28 GHz，并且获得的 MIMO 元件之间的互耦合远低于 -25 dB。通过研究包络相关系数 (ECC)、信道容量损耗 (CCL)、平均有效增益 (MEG) 和总有源反射系数 (TARC) 等重要的 MIMO 参数，表征 MIMO 环境中的天线性能。由于其在 E 和 H 平面上具有稳定且定向的辐射图，所提出的天线非常适合毫米波频谱中的 5G 应用。