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一种用于短距离室内应用的紧凑型平面单极超宽带 MIMO 天线。

A Compact Planar Monopole UWB MIMO Antenna for Short-Range Indoor Applications.

机构信息

Department of Electronics and Communication, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai 600062, India.

Department of Electronics and Communication, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur 603203, India.

出版信息

Sensors (Basel). 2023 Apr 23;23(9):4225. doi: 10.3390/s23094225.

DOI:10.3390/s23094225
PMID:37177429
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10180568/
Abstract

A compact, four-element planar MIMO (Multiple Input, Multiple Output) antenna that operates in an ultra-wideband is presented for diversity application. The orthogonal position of the unit cells replicates the single antenna thrice, thereby decreasing mutual coupling. A UWB MIMO antenna measuring 35 × 35 × 1.6 mm is built using a microstrip line (50 Ω impedance) on an FR4 substrate having a thickness of 1.6 mm. The ground plane and radiator of this antenna are adjusted in several ways to bring it within its operating constraints between the frequencies of 3.1 GHz and 10.6 GHz. This technique makes the antenna small and covers the entire ultra-wideband (UWB) frequency range. The NI USRP was used to test the proposed MIMO antenna to determine its real-time performance. Based on the computed results, we conclude that this proposed antenna has outstanding characteristics in terms of performance and is suitable for wireless ultra-wideband indoor communication and diversity utilization with a small size.

摘要

提出了一种工作在超宽带（UWB）的紧凑型四元平面多输入多输出（MIMO）天线，用于分集应用。单元的正交位置将单个天线复制了三倍，从而降低了互耦。使用微带线（50 Ω 阻抗）在厚度为 1.6mm 的 FR4 基板上构建了一个尺寸为 35×35×1.6mm 的 UWB MIMO 天线。通过几种方式调整该天线的地平面和辐射器使其在 3.1GHz 至 10.6GHz 的频率范围内满足工作约束。这种技术使天线小型化并覆盖整个超宽带（UWB）频率范围。使用 NI USRP 来测试所提出的 MIMO 天线，以确定其实时性能。基于计算结果，我们得出结论，该提出的天线在性能方面具有出色的特性，适用于小型无线超宽带室内通信和分集利用。

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