A compact dual‐band antenna is designed in this paper, which consists of a pair of lower band (LB) element and four higher band (HB) elements operating at 0.69 to 0.96 GHz and 3.3 to 3.6 GHz, respectively. Four HB elements are put between the adjacent dipole arms of LB element. All of elements are at the same height, and having their own reflector. A designed dual‐band dual‐polarized antenna at high frequency ratio will be fulfilled without added any other structure. The fabricated antenna sample has been measured, results show that the average gains of LB and HB elements are 8.48 dBi and 8.44 dBi and the half power beam widths are 69.1° ± 9° and 60.7° ± 8.5°, respectively. Moreover, dual‐polarized property of both LB and HB is checked. The cross‐polarization discrimination values are greater than 15 dB. The proposed antenna is implemented the coverage of two bands with high frequency ratio with a simple structure, and the antenna with both low profile and high gain characteristics. All of the results demonstrate that the antenna radiation boasts its favorable performance and can be a good candidate in 5G mobile communication system for sub‐6 GHz base stations.

中文翻译：

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外形更小巧的基站天线：具有双极化和双频带功能，适用于6 GHz以下的应用

本文设计了一种紧凑的双频天线，它由一对分别工作在0.69至0.96 GHz和3.3至3.6 GHz的低频带（LB）元件和四个高频带（HB）元件组成。四个HB元件放置在LB元件的相邻偶极臂之间。所有元素都处于相同的高度，并具有自己的反射器。无需添加任何其他结构即可实现设计的高频比双频双极化天线。测量了制作的天线样本，结果表明，LB和HB元件的平均增益分别为8.48 dBi和8.44 dBi，半功率波束宽度分别为69.1°±9°和60.7°±8.5°。此外，还检查了LB和HB的双极化特性。交叉极化鉴别值大于15 dB。所提出的天线以简单的结构实现了具有高频率比的两个频带的覆盖，并且具有低轮廓和高增益特性。所有结果都表明，天线辐射具有出色的性能，并且可以成为6 GHz以下基站的5G移动通信系统的良好候选者。