利用Stub加载技术降低UWB/MIMO天线的相互耦合

IF 0.5 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Electrical Control and Communication Engineering Pub Date : 2021-06-01 DOI:10.2478/ecce-2021-0002

A. H. Jabire, A. Abdu, S. Saminu, S. Salisu, A. Sadiq, Adamu Mohammed Jajere, Y. K. Ahmed

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引用次数: 9

摘要

摘要研究了利用短截线加载技术降低UWB-MIMO天线单元之间的相互耦合。所提出的2×2 UWB天线几何结构由两个圆形单极辐射器组成，该辐射器具有部分接地，以实现完美的阻抗匹配。在接地平面中的两个天线元件之间插入20mm×0.2mm的短截线，以提高隔离度。去耦短截线导致小于20dB的相互耦合减小。在选定的10GHz频率下的远场测量证实了全向辐射方向图。给出了不同的MIMO天线度量，如信道容量损耗（CCL）、平均有效增益（MEG）、全有源反射系数（TARC）、包络相关系数（ECC）和表面电流。详细介绍了设计考虑因素以及模拟和测量结果。所提出的MIMO天线阵列可以很好地适用于UWB应用。

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Reduction of Mutual Coupling in UWB/MIMO Antenna Using Stub Loading Technique

Abstract The research presents mutual coupling reduction between UWB-MIMO antenna elements using stub loading technique. The proposed 2 × 2 UWB antenna geometry consists of two circular-shaped monopole radiators with a partial ground for perfect impedance matching. Stubs of 20 mm × 0.2 mm are inserted between the two antenna elements in the ground plane to improve the isolation. The decoupling stub leads to a mutual coupling reduction of less than 20 dB. The farfield measurement at a selected frequency of 10 GHz confirms an omnidirectional radiation pattern. Different MIMO antenna metric such as channel capacity loss (CCL), mean effective gain (MEG), total active reflection coefficient (TARC), envelope correlation coefficient (ECC), and surface current are presented. Details of the design considerations and the simulation and measurement results are presented and discussed. The proposed MIMO antenna array can be well suited for UWB applications.

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来源期刊

Electrical Control and Communication Engineering ENGINEERING, ELECTRICAL & ELECTRONIC-

自引率

14.30%

发文量

审稿时长

12 weeks