Inset-Fed Octagonal-Shaped Quad-Port MIMO Patch Antenna for UWB Applications

IF 1.9 4区计算机科学 Q3 TELECOMMUNICATIONS Wireless Personal Communications Pub Date : 2024-09-10 DOI:10.1007/s11277-024-11561-x

Chirukuri Naga Phaneendra, Ketavath Kumar Naik

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Abstract

A compact and novel quad-element inset-fed octagonal-shaped multiple input multiple output patch (QIOMP) antenna with a hexagonal-shaped slot is designed for ultra-wideband applications. The proposed MIMO antenna comprises four identical octagonal-shaped radiating elements. To achieve better diversity performance and low mutual coupling, radiating elements are positioned at the ideal distance. The proposed octagonal-shaped MIMO antenna is prototyped on a Fr-4 substrate with the overall dimensions of 32 × 32 × 1.6 mm³. It achieves an ultra-wide bandwidth (S₁₁ < − 10 dB) of 13.9 GHz, operating from 2.5 to 16.7 GHz, except for the band notch from 8.9 to 9.2 GHz. The proposed antenna has a gain of 3.50 dBi, 4.40 dBi, 6.67 dBi, and 5.22 dBi at 4.8 GHz, 8.1 GHz, 10.5 GHz, and 14.1 GHz, respectively. At the operating frequencies, surface current distribution and radiation patterns are examined. The diversity performance of the QIOMP antenna is evaluated by reviewing several MIMO parameters, including an envelope correlation coefficient < 0.03, a diversity gain > 9.8, the total active reflection coefficient, and channel capacity loss < 0.05 bits/sec/Hz. The simulated and experimentally obtained results are presented and exhibit a high degree of concurrence.

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用于 UWB 应用的嵌入式馈电八角形四端口 MIMO 贴片天线

为超宽带应用设计了一种紧凑而新颖的八角形多输入多输出贴片天线（QIOMP），该天线带有一个六角形插槽。所提出的 MIMO 天线由四个相同的八角形辐射元件组成。为了实现更好的分集性能和较低的相互耦合，辐射元件被放置在理想的距离上。拟议的八角形 MIMO 天线原型是在 Fr-4 基板上制作的，总尺寸为 32 × 32 × 1.6 mm3。它实现了 13.9 GHz 的超宽带宽（S11 < - 10 dB），工作频率从 2.5 GHz 到 16.7 GHz，只有 8.9 GHz 到 9.2 GHz 的频带缺口除外。拟议的天线在 4.8 GHz、8.1 GHz、10.5 GHz 和 14.1 GHz 的增益分别为 3.50 dBi、4.40 dBi、6.67 dBi 和 5.22 dBi。在工作频率下，对表面电流分布和辐射模式进行了研究。通过查看包络相关系数 0.03、分集增益 9.8、总有源反射系数和信道容量损耗 0.05 比特/秒/赫兹等多个多输入多输出参数，评估了 QIOMP 天线的分集性能。模拟和实验结果显示出高度的一致性。

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来源期刊

Wireless Personal Communications 工程技术-电信学

CiteScore

5.80

自引率

9.10%

发文量

663

审稿时长

6.8 months

期刊介绍： The Journal on Mobile Communication and Computing ... Publishes tutorial, survey, and original research papers addressing mobile communications and computing; Investigates theoretical, engineering, and experimental aspects of radio communications, voice, data, images, and multimedia; Explores propagation, system models, speech and image coding, multiple access techniques, protocols, performance evaluation, radio local area networks, and networking and architectures, etc.; 98% of authors who answered a survey reported that they would definitely publish or probably publish in the journal again. Wireless Personal Communications is an archival, peer reviewed, scientific and technical journal addressing mobile communications and computing. It investigates theoretical, engineering, and experimental aspects of radio communications, voice, data, images, and multimedia. A partial list of topics included in the journal is: propagation, system models, speech and image coding, multiple access techniques, protocols performance evaluation, radio local area networks, and networking and architectures. In addition to the above mentioned areas, the journal also accepts papers that deal with interdisciplinary aspects of wireless communications along with: big data and analytics, business and economy, society, and the environment. The journal features five principal types of papers: full technical papers, short papers, technical aspects of policy and standardization, letters offering new research thoughts and experimental ideas, and invited papers on important and emerging topics authored by renowned experts.