电子测量与仪器学报

南敬昌,韩欣欣,高明明,王明寰,王艺扉,王纪禹.基于 DGS 的小型化 UWB-MIMO 天线的设计[J].电子测量与仪器学报,2022,36(5):89-95

基于 DGS 的小型化 UWB-MIMO 天线的设计

Design of miniaturized UWB-MIMO antenna based on DGS

DOI：

英文关键词:miniaturization ultra-wideband defective ground structure high isolation multiple-input multiple-output (MIMO) antenna

基金项目:国家自然科学基金（61971210）、辽宁省特聘教授项目（551710007004）、国家自然科学基金青年科学基金(61701211)、辽宁工程技术大学横向课题：基于压缩感知的图像传输与重构技术研究（21 2067）项目资助

作者	单位
南敬昌	1.辽宁工程技术大学电子与信息工程学院
韩欣欣	1.辽宁工程技术大学电子与信息工程学院
高明明	1.辽宁工程技术大学电子与信息工程学院
王明寰	1.辽宁工程技术大学电子与信息工程学院
王艺扉	1.辽宁工程技术大学电子与信息工程学院
王纪禹	1.辽宁工程技术大学电子与信息工程学院

Author	Institution
Nan Jingchang	1.School of Electronics and Information Engineering, Liaoning Technical University
Han Xinxin	1.School of Electronics and Information Engineering, Liaoning Technical University
Gao Mingming	1.School of Electronics and Information Engineering, Liaoning Technical University
Wang Minghuan	1.School of Electronics and Information Engineering, Liaoning Technical University
Wang Yifei	1.School of Electronics and Information Engineering, Liaoning Technical University
Wang Jiyu	1.School of Electronics and Information Engineering, Liaoning Technical University

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中文摘要:

根据目前无线通信系统发展趋势,设计了一款具有高隔离度的小型化双单元超宽带(UWB)多输入多输出(MIMO)天线,整体尺寸仅为 18 mm×22 mm×1 mm。该天线贴片采用刻蚀六角星的矩形结构,并在其右侧上下位置分别挖去“w”形及小矩形,实现了天线的宽带化;采用缺陷地(DGS)结构,在接地板顶端刻蚀两个半径相等的半圆形槽,实现了天线的高隔离度。仿真与实测结果基本吻合,天线最终的工作带宽为 2. 75 ~ 10. 64 GHz(相对带宽达到 117. 85%),且在带宽范围内隔离度均大于 22 dB,包络相关系数(ECC)小于 0. 015。由此,所设计的天线不仅尺寸极小、结构简单,且性能方面良好,可广泛应用于无线通信系统中。

英文摘要:

According to the current development trend of wireless communication systems, a miniaturized dual-unit ultra-wideband (UWB) multiple-input multiple-output (MIMO) antenna with high isolation is designed, and its overall size is only 18 mm×22 mm× 1 mm. The antenna’ s radiation patch adopts a rectangular structure etched with a hexagonal star, and a “ w” shape and a small rectangle are cut out on the upper and lower positions on the right side of the antenna to realize the broadbandization of the antenna. The high isolation of the antenna is achieved by using defective ground (DGS) structure and etching two semicircular slots of equal radius at the top of the ground plate. The simulation results are basically consistent with the actual measurement results. The final operating bandwidth of the antenna is 2. 75~ 10. 64 GHz (relative bandwidth reaches 117. 85%), and the isolation within the bandwidth range is greater than 22 dB, and the envelope correlation coefficient (ECC) is less than 0. 015. Therefore, the designed antenna is not only extremely small in size, simple in structure, but also good in performance, and can be widely used in wireless communication systems.

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