A Novel 28 GHz Phased Array Antenna for 5G Mobile Communications

ZTE Communications Pub Date : 2020-11-03 DOI:10.12142/ZTECOM.202003004

Li Yezhen, R. Yongli, Yang Fan, Xu Shenheng, Zhang Jiannian

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引用次数: 7

Abstract

A novel phased array antenna consisting of 256 elements is presented and experi⁃ mentally verified for 5G millimeter-wave wireless communications. The antenna integrated with a wave control circuit can perform real-time beam scanning by reconfiguring the phase of an antenna unit. The unit, designed at 28 GHz using a simple patch structure with one PIN diode, can be electronically controlled to generate 1 bit phase quantization. A prototype of the antenna is fabricated and measured to demonstrate the feasibility of this approach. The measurement results indicate that the antenna achieves high gain and fast beam-steer⁃ ing, with the scan beams within ±60° range and the maximum gain up to 21.7 dBi. Further⁃ more, it is also tested for wireless video transmission. In ZTE Shanghai, the antenna was used for the 5G New Radio (NR) test. The error vector magnitude (EVM) is less than 3% and the adjacent channel leakage ratio (ACLR) less than −35 dBc, which can meet 5G sys⁃ tem requirements. Compared with the conventional phased array antenna, the proposed phased array has the advantages of low power consumption, low cost and conformal geome⁃ try. Due to these characteristics, the antenna is promising for wide applications in 5G milli⁃ meter-wave communication systems.

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用于5G移动通信的新型28ghz相控阵天线

提出了一种由256个单元组成的新型相控阵天线，并对其进行了5G毫米波无线通信的实验验证。与波控制电路集成的天线可以通过重新配置天线单元的相位来执行实时波束扫描。该单元设计为28GHz，使用带有一个PIN二极管的简单贴片结构，可以通过电子控制产生1位相位量化。制作并测量了天线的原型，以证明该方法的可行性。测量结果表明，该天线实现了高增益和快速波束控制，扫描波束在±60°范围内，最大增益可达21.7 dBi。此外，它还被测试用于无线视频传输。在中兴通讯上海，该天线被用于5G新无线电（NR）测试。误差矢量幅度（EVM）小于3%，相邻信道泄漏率（ACLR）小于-35dBc，可以满足5G系统的要求。与传统相控阵天线相比，该相控阵具有低功耗、低成本和保形几何的优点。由于这些特性，该天线在5G毫米波通信系统中有着广泛的应用前景。

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

ZTE Communications

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1320