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Cross Polarized 2x2 LTE MIMO System for Automotive Shark Fin Application

机译:用于汽车鲨鱼翅片应用的十字极化2x2 LTE MIMO系统

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摘要

In this research we propose two orthogonally placed FR4 printed planar monopole antenna elements for use in the automobile roof top shark fin antenna for LTE MIMO applications. The discussed MIMO antenna system is designed to cover the worldwide LTE frequency band from 698MHz to 2700MHz. The goal of this research is to achieve satisfactory MIMO performance across the whole band while staying within physical constraints of the shark fin style antenna. The target reflection coefficient (S11) of each element is -6dB. Because of physical constraints of the automotive shark fin design antenna MIMO decorrelation is achieved by cross polarization and small distance separation. Correlation better than -12dB is targeted and achieved in higher bands, while in lower frequency bands antennas would not benefit from MIMO performance. Numerical simulation of the MIMO antenna system is performed using FEKO in order to verify the design parameters. Simulation findings are confirmed by manufacturing antennas and testing in the lab.
机译:在本研究中,我们提出了两个正交放置的FR4印刷平面单极天线元件,用于用于LTE MIMO应用的汽车屋顶鲨鱼鳍天线。讨论的MIMO天线系统旨在将全球LTE频带从698MHz覆盖到2700MHz。该研究的目标是在整个乐队中实现满意的MIMO性能,同时保持在鲨鱼鳍式天线的物理限制内。每个元素的目标反射系数(S11)为-6dB。由于汽车鲨鱼翅片设计天线的物理限制,通过交叉极化和小距离分离实现了MIMO去相关性。在较高频带中具有优于-12dB的相关性,而在较低频带中,天线不会受益于MIMO性能。使用Feko进行MIMO天线系统的数值模拟,以验证设计参数。通过制造天线和实验室测试确认仿真结果。

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