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Electronics and Telecommunications Research Institute (한국전자통신연구원)
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Co-located and space-shared multiple-input multiple-output antenna module and its applications in 12 × 12 multiple-input multiple-output systems

  • Longyue Qu (School of Electronics and Information Engineering, Harbin Institute of Technology) ;
  • Haiyan Piao (Hanyang Antenna Design Co. Ltd.) ;
  • Guohui Dong (China United Network Communications Group Co. Ltd)
  • Received : 2021.12.13
  • Accepted : 2022.04.26
  • Published : 2023.04.20
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Abstract

In this study, we developed a co-located and space-shared multiple-input multiple-output (MIMO) antenna module with a modular design and high integration level. The proposed antenna pair includes a half-wavelength loop antenna and a dipole-type antenna printed on the front and back sides of a compact modular board. Owing to their modal orthogonality, these two independent antenna elements are highly self-isolated and free of additional decoupling components, even though they are assembled at the same location and within the same space. Thus, the proposed antenna is attractive in 5G MIMO systems. Furthermore, the proposed co-located and space-shared MIMO antenna module was employed in a 5G smartphone to verify their radiation and diversity performances. A 12 × 12 MIMO antenna system was simulated and fabricated using the proposed module. Based on the results, the proposed module can be employed in large-scale MIMO antenna systems for current and future terminal devices owing to its high integration, compactness, simple implementation, and inherent isolation.

Keywords

Acknowledgement

This research was supported by Hanyang Antenna Design Co. Ltd., Shenzhen, China.

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