Purpose

An Elephant trunk shape (ETS) radiating element is used to achieve the two covering bands of multi-input multi-output (MIMO) antenna. These frequency bands can be controlled by the length of a slot embedded in ETS. The slot length in ETS plays a defining role in controlling the impedance bandwidth (IBW) of the MIMO antenna, and its diligent adjustment of it leads to cover the frequency range of Bluetooth and Wireless Local Area Network systems.

Design/methodology/approach

A new MIMO antenna is introduced in this paper in conjunction with an enhanced Wilkinson power divider feeding platform.

Findings

These frequency bands can be controlled by the length of a slot embedded in ETS. The slot length in ETS plays a defining role in controlling the IBW of the MIMO antenna, and its diligent adjustment leads to covering the frequency range of Bluetooth and WLAN systems.

Originality/value

The proposed MIMO antenna benefits from good isolation between ports for both frequency bands. The proposed MIMO antenna is constructed on FR4 substrate with a volume of 90 × 134 × 1.6 mm3.

中文翻译：

---

用于双频段应用的多输入多输出天线，具有新型辐射贴片和增强型馈电网络

目的

象鼻形（ETS）辐射元件用于实现多输入多输出（MIMO）天线的两个覆盖频段。这些频段可以通过嵌入 ETS 的时隙长度来控制。ETS中的时隙长度在控制MIMO天线的阻抗带宽（IBW）方面起着决定性的作用，其勤奋的调整导致覆盖蓝牙和无线局域网系统的频率范围。

设计/方法/方法

本文介绍了一种新的 MIMO 天线以及增强型 Wilkinson 功率分配器馈电平台。

发现

这些频段可以通过嵌入 ETS 的时隙长度来控制。ETS 中的时隙长度在控制 MIMO 天线的 IBW 方面起着决定性的作用，其勤奋的调整导致覆盖蓝牙和 WLAN 系统的频率范围。

原创性/价值

所提出的 MIMO 天线受益于两个频段的端口之间的良好隔离。所提出的 MIMO 天线构建在 FR4 基板上，体积为 90 × 134 × 1.6 mm3。