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A Low-Profile and High-isolated MIMO Antenna for 5G Mobile Terminal

机译:适用于5G移动终端的薄型高隔离MIMO天线

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摘要

An eight-element multiple-input multiple-output (MIMO) frame antenna array in the 3.5 GHz band (3400–3600 MHz) for 5G mobile terminal systems was presented. By using the adjacent grounding and electromagnetic coupling feeding technology, the loop antenna element could generate two resonant frequencies, thus effectively expanding its bandwidth. By adopting double-sided parallel strip line (DSPSL) technology, the electromagnetic coupling inside the loop antenna could be adjusted, and the size of the loop antenna could be effectively reduced so that the MIMO antenna array could obtain a low-profile structure. The total size of the MIMO array was 150 mm × 75 mm × 5.3 mm. Without additional isolation measures, the measured −6 dB impedance bandwidth (BW) was 3400–3660 MHz, and the minimum isolation between antenna elements was better than −20 dB. The proposed antenna was expected to be applied to 5G mobile terminals based on its low-profile, high-isolated characteristics, and good MIMO performance.
机译:提出了用于5G移动终端系统的3.5 GHz频带(3400–3600 MHz)中的八元素多输入多输出(MIMO)框架天线阵列。通过使用相邻的接地和电磁耦合馈电技术,环形天线元件可以产生两个谐振频率,从而有效地扩展了其带宽。通过采用双面平行带状线(DSPSL)技术,可以调整环形天线内部的电磁耦合,可以有效减小环形天线的尺寸,从而使MIMO天线阵列获得低调的结构。 MIMO阵列的总尺寸为150 mm×75 mm×5.3 mm。如果没有其他隔离措施,则测得的-6 dB阻抗带宽(BW)为3400–3660 MHz,天线元件之间的最小隔离度优于-20 dB。拟议的天线基于其低调,高隔离特性和良好的MIMO性能,有望应用于5G移动终端。

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