Ultra-wideband Dual-Polarized Base Station Antenna Design Applied to n77/n78/n79 Bands

IF 1.5 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Iranian Journal of Science and Technology-Transactions of Electrical Engineering Pub Date : 2024-03-04 DOI:10.1007/s40998-023-00683-w

Shuai Wang, Xiaoming Li, Wantong An

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Abstract

In order to meet the communication requirements of multi-band base station antennas, an ultra-wideband dual-polarized 5G base station antenna integrating n77/n78/n79 frequency bands is proposed. The main radiator of the antenna is composed of two pairs of arrow cross-dipoles placed at ± 45°, and the antenna impedance bandwidth is guaranteed by adding four rectangular parasitic patches and opening rectangular slots. The designed parasitic patch expands the bandwidth while enhancing the dual-polarization characteristics of the antenna. Furthermore, a box-type reflector is employed, which facilitates obtaining high gain and good half-power beamwidth. Finally, a sample of the antenna is fabricated and tested. As shown in the measurement results, the − 10 dB impedance bandwidth reaches up to 51.9% (3.0–5.1 GHz) with the antenna isolation in the working frequency band better than 24 dB. In the frequency range of 3.3–5 GHz, the antenna achieves a high gain of 9 dB and a HPBW of 64 ± 2°, and the cross-polarization ratio is better than 21 dB overall. Compared to traditional base station antennas, this antenna has significant advantages in terms of gain and HPBW.

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应用于 n77/n78/n79 波段的超宽带双极化基站天线设计

为了满足多频段基站天线的通信要求，本文提出了一种集成 n77/n78/n79 频段的超宽带双极化 5G 基站天线。天线的主辐射器由两对±45°放置的箭形交叉偶极子组成，并通过增加四个矩形寄生贴片和开矩形槽来保证天线的阻抗带宽。设计的寄生贴片扩大了带宽，同时增强了天线的双极化特性。此外，还采用了盒式反射器，有助于获得高增益和良好的半功率波束宽度。最后，制作并测试了天线样品。测量结果显示，-10 dB 阻抗带宽高达 51.9%（3.0-5.1 GHz），天线在工作频段的隔离度优于 24 dB。在 3.3-5 GHz 频率范围内，该天线实现了 9 dB 的高增益和 64 ± 2° 的 HPBW，交叉极化比总体优于 21 dB。与传统基站天线相比，该天线在增益和 HPBW 方面具有显著优势。

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

Iranian Journal of Science and Technology-Transactions of Electrical Engineering ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

5.50

自引率

4.20%

发文量

审稿时长

>12 weeks

期刊介绍： Transactions of Electrical Engineering is to foster the growth of scientific research in all branches of electrical engineering and its related grounds and to provide a medium by means of which the fruits of these researches may be brought to the attentionof the world’s scientific communities. The journal has the focus on the frontier topics in the theoretical, mathematical, numerical, experimental and scientific developments in electrical engineering as well as applications of established techniques to new domains in various electical engineering disciplines such as: Bio electric, Bio mechanics, Bio instrument, Microwaves, Wave Propagation, Communication Theory, Channel Estimation, radar & sonar system, Signal Processing, image processing, Artificial Neural Networks, Data Mining and Machine Learning, Fuzzy Logic and Systems, Fuzzy Control, Optimal & Robust ControlNavigation & Estimation Theory, Power Electronics & Drives, Power Generation & Management The editors will welcome papers from all professors and researchers from universities, research centers, organizations, companies and industries from all over the world in the hope that this will advance the scientific standards of the journal and provide a channel of communication between Iranian Scholars and their colleague in other parts of the world.