A 3.45 GHz linear array antenna based on Wilkinson power divider structure

IF 3 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Aeu-International Journal of Electronics and Communications Pub Date : 2024-11-16 DOI:10.1016/j.aeue.2024.155594

Weibing Xiao , Kuangang Fan , Fazhu Zhou , Jizan Zhu , Shuliang Li

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Abstract

In this paper, Aiming at the problems of high delay, high density, and low transmission rate of 5G mobile communication in a maglev train, a linear array antenna with 5G parallel feed of 3.45 GHz is proposed to solve the problem of low gain of 5G antenna in n78 band. The antenna is based on a non-traditional Wilkinson power splitter structure to improve antenna gain. The power divider is finally extended to eight. Antenna design on low-cost FR4 material dielectric substrate while improving antenna gain, with a dielectric constant of 4.4 and a thickness of 1.6 mm. Firstly, the original size of the patch is calculated based on Matlab software and optimized by HFSS electromagnetic software simulation. Finally, the results are relatively matched by comparing the experiment with the simulation. The antenna was sequentially improved from 3.2 dB to 5.6 dB, 8.2 dB, and 9.3 dB, which are 75%, 45.42%, and 11.41% higher than the previous level of the antenna of its design, respectively, and finally 6.1 dB higher. After simulation and testing, it can be seen that the antenna has the advantages of high gain, low sidelobe, low cost, and strong directivity.

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基于威尔金森功率分配器结构的 3.45 GHz 线性阵列天线

本文针对 5G 移动通信在磁悬浮列车中存在的高时延、高密度、低传输速率等问题，提出了一种 3.45 GHz 的 5G 并馈线阵列天线，以解决 n78 频段 5G 天线增益低的问题。该天线基于非传统的威尔金森功分器结构，以提高天线增益。功率分配器最终扩展到八个。在提高天线增益的同时，在低成本的 FR4 材料介质基板上设计天线，介电常数为 4.4，厚度为 1.6 毫米。首先，基于 Matlab 软件计算贴片的原始尺寸，并通过 HFSS 电磁软件仿真进行优化。最后，通过实验与仿真对比，得出相对匹配的结果。天线从 3.2 dB 依次提高到 5.6 dB、8.2 dB 和 9.3 dB，分别比之前设计的天线水平提高了 75%、45.42% 和 11.41%，最终提高了 6.1 dB。经过仿真和测试，可以看出该天线具有增益高、侧扰低、成本低、指向性强等优点。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Aeu-International Journal of Electronics and Communications 工程技术-电信学

CiteScore

6.90

自引率

18.80%

发文量

292

审稿时长

4.9 months

期刊介绍： AEÜ is an international scientific journal which publishes both original works and invited tutorials. The journal''s scope covers all aspects of theory and design of circuits, systems and devices for electronics, signal processing, and communication, including: signal and system theory, digital signal processing network theory and circuit design information theory, communication theory and techniques, modulation, source and channel coding switching theory and techniques, communication protocols optical communications microwave theory and techniques, radar, sonar antennas, wave propagation AEÜ publishes full papers and letters with very short turn around time but a high standard review process. Review cycles are typically finished within twelve weeks by application of modern electronic communication facilities.