High-Isolation wideband MIMO antenna with offset T-Shaped slots for 5G/WLAN applications

被引：2

作者：

Chen, Shuyi ^{[1
]}

Lu, Na ^{[1
]}

Sun, Jiaxing ^{[1
]}

Zhou, Changfei ^{[1
]}

Li, Changxian ^{[2
]}

Wu, Di ^{[3
]}

机构：

[1] Dalian Univ Technol, Fac Elect Informat & Elect Engn, Dalian, Peoples R China

[2] Dalian Jiaotong Univ, Natl & Local Joint Engn Res Ctr Rail Transit Equip, Dalian, Peoples R China

[3] Shenzhen Univ, Coll Elect & Informat Engn, Shenzhen, Peoples R China

来源：

FRONTIERS IN PHYSICS | 2022年 / 10卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

wideband; MIMO; offset T-shaped slot; decouple; high isolation; 5G; MOBILE; ARRAY; SMARTPHONE; PAIRS; REDUCTION;

D O I：

10.3389/fphy.2022.986558

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A broadband multiple-input multiple-output (MIMO) antenna with high isolation operating in 3.14-5.42 GHz (2.28 GHz, 53.3%) is proposed for 5G smartphones. An offset T-shaped slot with dual functions is employed to improve the bandwidth of one antenna element and enhance the isolation. Then, the double L-shaped stubs are loaded to improve the impedance matching of the other antenna in the MIMO antenna. Finally, the 2 x 2 MIMO antenna is constructed by four T-shaped monopole antennas, two double L-shaped stubs, and two offset T-shaped slots. The proposed MIMO antenna is first simulated and then experimentally tested with a good agreement. High isolation of greater than 15 dB, high antenna efficiency of more than 54%, and low envelope correlation coefficient (ECC) of smaller than 0.08 are realized within 3.14-5.42 GHz. These good performances indicate that the proposed antenna can be applied for MIMO applications in smartphones.

引用

页数：10

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