Frontiers of Information Technology & Electronic Engineering
>> 2020,
Volume 21,
Issue 1
doi:
10.1631/FITEE.1900466
Review
Decoupling methods of MIMO antenna arrays for 5G applications: a review
1. Science and Technology on Antenna and Microwave Laboratory, Xidian University, Xi’an 710071, China
2. Department of Electronic and Digital Technologies, Polytech Nantes, University of Nantes, Nantes 44306, France |
Available online: 2020-04-01
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Abstract
Multiple-input multiple-output (MIMO) technique is a key technique for communication in the future. It can effectively enhance channel capacity. For future fifth-generation (5G) terminals, it is still a challenging task to realize desirable isolation within a compact size. To achieve an acceptable isolation level, many decoupling methods have been developed. We review the most recent research on decoupling methods, including the employment of external decoupling structures, orthogonal modes, and reduction of ground effect, and discuss the development trends of the MIMO array in 5G smartphones.
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