High Isolation MIMO Antenna System for 5G N77/N78/N79 Bands

被引：0
|
作者：
Wei, Xuanhe [1 ]
Lu, Jiaping [1 ]
Miao, Youming [1 ]
Huang, Jianlin [1 ]
Chen, Zhizhou [1 ]
Liu, Gui [1 ]
机构：
[1] Wenzhou Univ, Coll Elect & Elect Engn, Wenzhou 325035, Peoples R China
来源：
MICROMACHINES | 2024年 / 15卷 / 06期
基金：
中国国家自然科学基金;
关键词：
5G new radio (5G NR); sub-6; GHz; MIMO; dual-band antenna; metal-frame smartphone;
D O I：
10.3390/mi15060721
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
This paper presents a symmetric dual-band multiple-input multiple-output (MIMO) antenna system tailored for fifth-generation (5G) mobile terminals. Operating within the 5G frequency bands N77/N78 (3.4-3.6 GHz) and N79 (4.8-5.0 GHz), the proposed MIMO system achieves high isolation between adjacent antenna elements through slotting and self-decoupling technologies. Antenna elements are strategically positioned on two frames perpendicular to the smartphone's main board. Each antenna element integrates a rectangular microstrip radiator on the inner frame surface, accompanied by a grounded rectangular ring on the outer frame surface. The feed line, situated atop the main board, connects to an external SMA connector located at the main board's bottom. Measurement results reveal isolations exceeding 20 dB for the lower band and 24 dB for the higher band. The fabricated and tested MIMO antenna system demonstrates excellent agreement between simulation and measurement outcomes.
引用
收藏
页数：16
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