Abstract A two-port MIMO Dielectric Resonator Antenna (DRA) has been studied and developed. The proposed antenna consists of a single Rectangular DRA (RDRA). The antenna is integrated with the substrate and electrified using coaxial feed, which excites hybrid TM mode in the DR. The mutual coupling within both the ports has been reduced by employing copper shielded on two vertical walls of a rectangular cavity in the centre of DRA. A parametric study has been done to attain optimum parameters, and then the proposed antenna has been fabricated. The presented antenna with acceptable MIMO characteristics covers a measured bandwidth of 1.24 GHz (2.16 GHz – 3.4 GHz) for |S11| ≤ −10 dB, which can operate on LTE bands. The measured isolation between the two ports in the operating band is more than 25 dB. The proposed antenna renders easy fabrication and feeding with good MIMO characteristics. Therefore, the proposed 3D printable MIMO antenna is worthy for LTE applications.

中文翻译：

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设计和开发用于 LTE 应用的具有两个方向模式分集的 3D 打印 MIMO RDRA

摘要 研究开发了一种二端口MIMO介质谐振天线(DRA)。建议的天线由单个矩形 DRA (RDRA) 组成。天线与基板集成并使用同轴馈电通电，这在 DR 中激发了混合 TM 模式。通过在 DRA 中心矩形腔的两个垂直壁上采用铜屏蔽，减少了两个端口内的相互耦合。进行了参数研究以获得最佳参数，然后制造了建议的天线。所呈现的具有可接受 MIMO 特性的天线覆盖了 |S11| 的 1.24 GHz (2.16 GHz – 3.4 GHz) 测量带宽 ≤ −10 dB，可在LTE频段上运行。测得的工作频段两个端口之间的隔离度超过 25 dB。所提出的天线易于制造和馈电，具有良好的 MIMO 特性。因此，所提出的 3D 可打印 MIMO 天线值得用于 LTE 应用。