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一种用于未来超薄移动终端的双频段八元MIMO天线阵列。

A Dual-Band Eight-Element MIMO Antenna Array for Future Ultrathin Mobile Terminals.

作者信息

Zhang Chuanba, Chen Zhuoni, Shi Xiaojing, Yang Qichao, Dong Guiting, Wei Xuanhe, Liu Gui

机构信息

College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou 325035, China.

出版信息

Micromachines (Basel). 2022 Aug 6;13(8):1267. doi: 10.3390/mi13081267.

DOI:10.3390/mi13081267
PMID:36014189
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9412695/
Abstract

An ultrathin dual-band eight-element multiple input-multiple output (MIMO) antenna operating in fifth-generation (5G) 3.4-3.6 GHz and 4.8-5 GHz frequency bands for future ultrathin smartphones is proposed in this paper. The size of a single antenna unit is 9 × 4.2 mm (0.105 λ × 0.05 λ, λ equals the free-space wavelength of 3.5 GHz). Eight antenna units are structured symmetrically along with two sideboards. Two decoupling branches (DB1 and DB2) are employed to weaken the mutual coupling between Ant. 1 and Ant. 2 and between Ant. 2 and Ant. 3, respectively. The measured -10 dB impedance bands are 3.38-3.82 GHz and 4.75-5.13 GHz, which can entirely contain the desired bands. Measured isolation larger than 14.5 dB and 15 dB is obtained in the first and second resonant modes, respectively. Remarkable consistency between the simulated and measured results can be achieved. Several indicators, such as the envelope correlation coefficient (ECC), diversity gain (DG), total active reflection coefficient (TARC), and multiplexing efficiency (ME), have been presented to assess the MIMO performance of the designed antenna.

摘要

本文提出了一种用于未来超薄智能手机的超薄双频段八元多输入多输出（MIMO）天线，其工作在第五代（5G）3.4 - 3.6 GHz和4.8 - 5 GHz频段。单个天线单元的尺寸为9×4.2毫米（0.105λ×0.05λ，λ等于3.5 GHz的自由空间波长）。八个天线单元沿两个侧板对称结构。采用两个去耦分支（DB1和DB2）分别削弱天线1与天线2之间以及天线2与天线3之间的互耦。实测的-10 dB阻抗带宽为3.38 - 3.82 GHz和4.75 - 5.13 GHz，可完全包含所需频段。在第一和第二谐振模式下分别获得大于14.5 dB和15 dB的实测隔离度。模拟结果与实测结果之间可实现显著一致性。还给出了几个指标，如包络相关系数（ECC）、分集增益（DG）、总有源反射系数（TARC）和复用效率（ME），以评估所设计天线的MIMO性能。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/cd6786af7ca2/micromachines-13-01267-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/aaa12e14f0ee/micromachines-13-01267-g001a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/1972ad9a9c96/micromachines-13-01267-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/d8081d46027e/micromachines-13-01267-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/8a7ee6ef45e6/micromachines-13-01267-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/10f6fa4ff86d/micromachines-13-01267-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/4797df228600/micromachines-13-01267-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/05cc52afb96f/micromachines-13-01267-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/a73e2470647c/micromachines-13-01267-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/287b2c4599a5/micromachines-13-01267-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/703f64f6116e/micromachines-13-01267-g010a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/45c492d93e9b/micromachines-13-01267-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/cf1c9117b4ca/micromachines-13-01267-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/9f4ecd8be90a/micromachines-13-01267-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/179868f62106/micromachines-13-01267-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/cd6786af7ca2/micromachines-13-01267-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/aaa12e14f0ee/micromachines-13-01267-g001a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/1972ad9a9c96/micromachines-13-01267-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/d8081d46027e/micromachines-13-01267-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/8a7ee6ef45e6/micromachines-13-01267-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/10f6fa4ff86d/micromachines-13-01267-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/4797df228600/micromachines-13-01267-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/05cc52afb96f/micromachines-13-01267-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/a73e2470647c/micromachines-13-01267-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/287b2c4599a5/micromachines-13-01267-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/703f64f6116e/micromachines-13-01267-g010a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/45c492d93e9b/micromachines-13-01267-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/cf1c9117b4ca/micromachines-13-01267-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/9f4ecd8be90a/micromachines-13-01267-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/179868f62106/micromachines-13-01267-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2299/9412695/cd6786af7ca2/micromachines-13-01267-g015.jpg

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