A new multiple‐input and multiple‐output (MIMO) antenna conjoined with a metal case and metal frame in mobile phones for fifth generation mobile network applications is presented. The main antenna is the metal frame inverted‐F antenna (IFA) with a high‐pass circuit (HPC) on the short side of the phone (Ant. 1); then, the system ground extending path and coupling are used to create a semi‐slot antenna (Ant. 2). The metal frame radiating monopole antenna (Ant. 3) uses a low‐pass circuit, and the IFA antennas (Ant. 4) with HPCs are placed in a clear space only 1‐mm wide on the long side of the phone. To improve the isolation of the multiple antennas, the configuration of the MIMO antenna integration was investigated. The proposed four‐ or eight‐MIMO array was comprehensively evaluated in the desired band. The characteristics of individual antennas were used to achieve pattern diversity, and they demonstrated good performance in channel capacity evaluation: 19.4 bps/Hz (four‐antenna MIMO) and 38.6 bps/Hz (eight‐antenna MIMO).

中文翻译：

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多天线与金属框架相连，并集成到8×8多输入和多输出阵列中，用于第五代智能手机应用

提出了一种新的多输入多输出（MIMO）天线，结合了第五代移动网络应用中的手机金属外壳和金属框架。主天线是金属框架倒F天线（IFA），在电话的短边带有一个高通电路（HPC）（图1）；然后，使用系统接地延伸路径和耦合来创建半缝天线（附件2）。金属框架辐射单极天线（Ant。3）使用低通电路，带有HPC的IFA天线（Ant。4）放置在电话长边仅1毫米宽的空白处。为了提高多天线的隔离度，研究了MIMO天线集成的配置。拟议的四或八MIMO阵列在所需频段进行了全面评估。