In this article, a novel configuration of ring dielectric resonator-based multiple input multiple output antenna (MIMO) is proposed with a beam tilting characteristic. To achieve the beam tilting and low correlation among the far-field patterns, the conducting plate is positioned in between the antenna elements. Dual resonating frequencies are obtained by exciting the ring DRA electromagnetically with a microstrip line via optimized double-ring loaded slots. All the ports are arranged in a parallel fashion. Port-1/port-2 is placed 180⁰ out of phase with port-3/port-4. The proposed antenna achieves the maximum beam tilting of 55⁰ and 35⁰ at 2.61 and 2.95 GHz, respectively. Polarization diversity is confirmed between oppositely oriented ports i.e. port-1/port-2 and port-4/port-3 by getting LHCP and RHCP patterns, respectively. The optimum value of diversity parameters of the proposed MIMO ring DRA makes it suitable for high-speed applications.

在本文中，提出了一种具有波束倾斜特性的基于环形介质谐振器的多输入多输出天线 (MIMO) 的新颖配置。为了实现远场方向图之间的波束倾斜和低相关性，导电板位于天线元件之间。双谐振频率是通过优化的双环加载槽用微带线电磁激励环 DRA 获得的。所有端口均以并行方式排列。端口 1/端口 2 与端口 3/端口 4 相差 180 ⁰。所提出的天线分别在 2.61 和 2.95 GHz 处实现了 55 ⁰和 35 ^{0的最大波束倾斜。}在相反方向的端口之间确认极化分集，即port-1/port-2 和 port-4/port-3 通过分别获取 LHCP 和 RHCP 模式。所提出的 MIMO 环 DRA 的分集参数的最佳值使其适用于高速应用。