Common-Loop MIMO Antenna Design With Decoupling Inductors Using Characteristic Mode Analysis

被引：7
|
作者：
Qu, Longyue [1 ,2 ]
机构：
[1] Harbin Inst Technol Shenzhen, Sch Elect & Informat Engn, Shenzhen 518055, Peoples R China
[2] Harbin Inst Technol Shenzhen, Guangdong Prov Key Lab Aerosp Commun & Networking, Shenzhen 518055, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2023年 / 22卷 / 12期
关键词：
Characteristic mode analysis (CMA); decoupling inductor; high isolation; multiple-input-multiple-output (MIMO); COMPACT; PAIR; EXCITATION; DIVERSITY; SYSTEM; ARRAY;
D O I：
10.1109/LAWP.2023.3312690
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This letter investigates the intrinsic operation principles of the decoupling inductors in multiple-input-multiple-output (MIMO) antenna design using the characteristic mode analysis, in the first of its kind. This work starts with the analysis of a conventional one-wavelength loop antenna and then investigates the MIMO antenna design methods in terminal scenarios. It is revealed that the decoupling inductors introduce a new characteristic mode within the antenna operation band, contributing to the current-mode-canceling effect and responsible for port-to-port isolation. A two-in-one common-loop MIMO antenna design with high-isolation characteristics is proposed for N77/N78/N79 applications. Both simulation and measurement were conducted to verify the feasibility of the proposed MIMO antennas.
引用
收藏
页码：3172 / 3176
页数：5
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