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A broadband array antenna using epsilon-near-zero metamaterials for MIMO applications

机译:使用ε近零的超材料的宽带阵列天线用于MIMO应用

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摘要

In this article, the capability of epsilon-near-zero (ENZ) metamaterial (MTM) to reduce mutual coupling between densely packed array elements is examined. The results show a reduction in mutual coupling between antenna elements and provide a possible way to reduce the element separation. To verify and confirm the simulation results, a prototype of the proposed ENZ structure incorporating an array of closely implemented patch antennas, 0.12λ_t, are fabricated and tested. The array antenna has an overall dimension of approximately 2.66λ_L × 1.75λ_L × 0.05λ_L while achieving an average gain and efficiency of 7 dB and 85%, respectively. Measurement shows that the mutual coupling is mostly better than -20 dB across a broad bandwidth of >2.6:1 (10.5-27.7 GHz).
机译:在本文中,研究了ε接近零(ENZ)超材料(MTM)减少密集排列的阵列元素之间相互耦合的能力。结果表明减少了天线元件之间的相互耦合,并提供了减少元件间距的可能方法。为了验证和确认仿真结果,制造并测试了包含紧密实施的贴片天线阵列0.12λ_t的拟议ENZ结构的原型。阵列天线的整体尺寸约为2.66λ_L×1.75λ_L×0.05λ_L,同时平均增益和效率分别为7 dB和85%。测量表明,在> 2.6:1(10.5-27.7 GHz)的较宽带宽内,互耦大部分优于-20 dB。

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