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一种紧凑型超薄4×4多输入多输出天线。

A Compact Ultra-Thin 4 × 4 Multiple-Input Multiple-Output Antenna.

作者信息

Zhang Chuanba, Huang Jianlin, Shi Xiaojing, Dong Guiting, Cai Jing, Liu Gui

机构信息

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

出版信息

Sensors (Basel). 2022 Aug 15;22(16):6091. doi: 10.3390/s22166091.

DOI:10.3390/s22166091
PMID:36015852
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9413365/
Abstract

This article reported a compact ultra-thin tightly arranged 4 × 4 multiple-input multiple-output (MIMO) antenna pair (AP) functioning in the fifth-generation (5G) n78 band (3.4-3.6 GHz) for the ultra-thin 5G mobile handset. Two APs were printed on the center of two sideboards. A T-shaped open-ended slot was utilized in the grounding plane to improve the port impedance matching and attenuate the reciprocal magnetic coupling. A minimized total volume of 145 × 75 × 5 mm was obtained, and the area of each radiating unit was only 8.5 × 4.2 mm (0.1λ × 0.05λ, λ is the free-space wavelength at the frequency of 3.5 GHz). By placing two radiating elements in an exceeding closed (1 mm or 0.01167λ) distance, the designed AP precisely resonated at 3.5 GHz, and an acceptable measured isolation performance superior to 17 dB was attained. A prototype of this presented APs system was printed and tested, and remarkable consistency was observed between the simulated and measured curves. Numerous indicators were computed to assess its MIMO performance, such as Envelope Correlation Efficiency (ECC), Diversity Gain (DG), Total Active Reflection Coefficient (TARC), and Multiplexing Efficiency (ME).

摘要

本文报道了一种紧凑超薄且紧密排列的4×4多输入多输出(MIMO)天线对(AP),其工作在第五代(5G)n78频段(3.4 - 3.6GHz),用于超薄5G移动手机。两个AP印刷在两个侧板的中心位置。接地平面采用了T形开口槽,以改善端口阻抗匹配并减弱互易磁耦合。获得了最小总体积为145×75×5mm,每个辐射单元的面积仅为8.5×4.2mm(0.1λ×0.05λ,λ是3.5GHz频率下的自由空间波长)。通过将两个辐射元件放置在超近(1mm或0.01167λ)距离,所设计的AP在3.5GHz精确谐振,并获得了优于17dB的可接受测量隔离性能。制作并测试了该AP系统的原型,模拟曲线和测量曲线之间观察到了显著的一致性。计算了许多指标来评估其MIMO性能,如包络相关效率(ECC)、分集增益(DG)、总有源反射系数(TARC)和复用效率(ME)。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/8a1d14410d3f/sensors-22-06091-g018.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/bb4e96f7fc24/sensors-22-06091-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/2a780612b212/sensors-22-06091-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/c524d67366dc/sensors-22-06091-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/75a8b54cd7b9/sensors-22-06091-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/208573948c9b/sensors-22-06091-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/17217969fdbd/sensors-22-06091-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/24efabed3fc0/sensors-22-06091-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/99807432451e/sensors-22-06091-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/34345e3e82d7/sensors-22-06091-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/332c6317b8f4/sensors-22-06091-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/160e0fc4d26f/sensors-22-06091-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/8ca87fd7cb95/sensors-22-06091-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/1665eee24ca7/sensors-22-06091-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/35905b324c7b/sensors-22-06091-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/60cc4a0e4cb2/sensors-22-06091-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/2044022ccbbb/sensors-22-06091-g016.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/309b91d93140/sensors-22-06091-g017.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/8a1d14410d3f/sensors-22-06091-g018.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/bb4e96f7fc24/sensors-22-06091-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/2a780612b212/sensors-22-06091-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/c524d67366dc/sensors-22-06091-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/75a8b54cd7b9/sensors-22-06091-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/208573948c9b/sensors-22-06091-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/17217969fdbd/sensors-22-06091-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/24efabed3fc0/sensors-22-06091-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/99807432451e/sensors-22-06091-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/34345e3e82d7/sensors-22-06091-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/332c6317b8f4/sensors-22-06091-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/160e0fc4d26f/sensors-22-06091-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/8ca87fd7cb95/sensors-22-06091-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/1665eee24ca7/sensors-22-06091-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/35905b324c7b/sensors-22-06091-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/60cc4a0e4cb2/sensors-22-06091-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/2044022ccbbb/sensors-22-06091-g016.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/309b91d93140/sensors-22-06091-g017.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206f/9413365/8a1d14410d3f/sensors-22-06091-g018.jpg

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