ABSTRACT

In this paper, we introduce a four-port self-isolated double-sided Ultra Wide Band (UWB) MIMO antenna with WLN notch characteristics for short-range wireless high-definition (HD) video transmission applications. The double side orthogonal arrangement of the radiators is adopted to mitigate the mutual coupling between the four radiators without using an isolation structure. The proposed MIMO antenna design provides a UWB band with the notch characteristics at 5 GHz (4.6–5.9 GHz) by removing tapered rectangular slot. Employing a two-sided structure technique, it achieves an impedance bandwidth of 3.1–13 GHz while keeping isolation above 20 dB and a compact size of $28\times 28\times 1.6{\mathrm{m}\mathrm{m}}^3$. Critical parameters that affect antenna performance, such as bandwidth, surface current, radiation characteristics, envelope correlation coefficient (ECC), peak gain, are being investigated. Also, the proposed simulation and measurement results of the two-sided MIMO antenna show that it is suitable for UWB because of wide impedance bandwidth, radiation pattern, high gain, low ECC, and high isolation. Indoor environment test was conducted using the National Instruments (NI) 802.11 framework to verify the real-time short-range wireless HD video transmission and reception capacity of the proposed MIMO antenna.

摘要

在本文中，我们介绍了一种用于短距离无线高清 (HD) 视频传输应用的具有 WLN 陷波特性的四端口自隔离双面超宽带 (UWB) MIMO 天线。采用辐射体的双边正交布置，在不使用隔离结构的情况下，减轻了四个辐射体之间的相互耦合。所提出的 MIMO 天线设计通过去除锥形矩形槽提供了具有 5 GHz (4.6-5.9 GHz) 陷波特性的 UWB 频带。采用双面结构技术，它实现了 3.1-13 GHz 的阻抗带宽，同时保持 20 dB 以上的隔离度和紧凑的尺寸$28\times 28\times 1.6{\mathrm{米}\mathrm{米}}^3$. 正在研究影响天线性能的关键参数，例如带宽、表面电流、辐射特性、包络相关系数 (ECC)、峰值增益。此外，所提出的双面 MIMO 天线的仿真和测量结果表明，它适用于 UWB，因为它具有宽阻抗带宽、辐射方向图、高增益、低 ECC 和高隔离度。使用美国国家仪器 (NI) 802.11 框架进行室内环境测试，以验证所提出的 MIMO 天线的实时短距离无线高清视频传输和接收能力。