Central-Symmetry Decoupling Technique for Circularly-Polarized MIMO System of Tightly Packed Chinese-character Shaped Patch Antennas

Authors

  • Kwok L. Chung Civionics Research Laboratory, School of Civil Engineering Qingdao University of Technology, Qingdao, 266033, China
  • Aiqi Cui Civionics Research Laboratory, School of Civil Engineering Qingdao University of Technology, Qingdao, 266033, China
  • Mingliang Ma Civionics Research Laboratory, School of Civil Engineering Qingdao University of Technology, Qingdao, 266033, China
  • Botao Feng College of Electronic and Information Engineering, Shenzhen University, 518060, China
  • Yingsong Li College of Information and Communication Engineering, Harbin Engineering University, Harbin, 15001, China

Keywords:

Antenna isolation, artistic patch antenna, Chinese-character-shaped patch antenna, CP-MIMO, decoupling technique

Abstract

This article presents a novel decoupling technique for the circularly polarized multiple-inputmultiple- output (CP-MIMO) system composed of Guoshaped patch antennas. A comparative study has been conducted on antenna performance as a function of packing distance before and after applying the technique. A prototype of two-element Guo-shaped patch MIMO at a small inter-element spacing of 12.5 mm has devised aiming for the 5G new radio n38 (2.57-2.62 GHz) applications. Simulation reinforced with experimental results confirmed the effectiveness of the proposed technique, whereas the two Guo-shaped patch elements packed in such small spacing can be operated independently. Both the envelope correlation coefficient and diversity gain are approaching their ideal values.

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Author Biographies

Kwok L. Chung, Civionics Research Laboratory, School of Civil Engineering Qingdao University of Technology, Qingdao, 266033, China

Kwok L. Chung (Senior Member, IEEE) is a Research Professor and a Supervisor of Ph.D. students with Qingdao University of Technology (QUT). He is also a Director of Civionics Research Laboratory where he leads a cross-disciplinary research team at QUT. His current research interests include passive wireless sensors, cement-based materials design and characterization, microwave antennas, and metasurface. He is the Founding Chair of the IEEE Qingdao AP/MTT/COM joint chapter (CN10879) under Beijing Section. He has been an Associate Editor of IEEE ACCESS and an Associate Editor of Elsevier Alexandria Engineering Journal since 2016 and 2020, resepectively. He serves as a Reviewer for the numerous IEEE, IET, Elsevier, and other international journals.

Aiqi Cui, Civionics Research Laboratory, School of Civil Engineering Qingdao University of Technology, Qingdao, 266033, China

Aiqi Cui was born in Jincheng, Shanxi, China in 1994. She received a degree in Packaging Engineering from Hunan University of Technology. She is currently pursuing a master's degree in Material Science and Engineering. Her research interests include electromagnetic shielding, material characterization, and artistic antennas.

Mingliang Ma, Civionics Research Laboratory, School of Civil Engineering Qingdao University of Technology, Qingdao, 266033, China

Mingliang Ma received the B.S. degree from Ludong University in 2007, and received Ph.D. degree in Materials Science from North-western Polytechnical University in 2014. In late 2014, he joined the Qingdao University of Technology and now is an Associate Professor. His main research areas include design of multi-functional electromagnetic absorption materials, and disaster prevention mitigation and protection engineering.

Botao Feng, College of Electronic and Information Engineering, Shenzhen University, 518060, China

Botao Feng (Senior Member, IEEE) received the Ph.D. degree in Communication and Information System from the Beijing University of Posts and Telecommunications (BUPT), Beijing, China, in 2015. He is currently a Postgraduate Advisor and a Postdoctoral Advisor with Shenzhen University, China, where he is also the Head of the Laboratory of Wireless Communication, Antennas and Propagation and the Deputy Director of the Department of Electronic Science and Technology.

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Published

2021-11-06

How to Cite

[1]
K. L. . Chung, A. . Cui, M. . Ma, B. . Feng, and Y. . Li, “Central-Symmetry Decoupling Technique for Circularly-Polarized MIMO System of Tightly Packed Chinese-character Shaped Patch Antennas”, ACES Journal, vol. 36, no. 09, pp. 1125–1131, Nov. 2021.

Issue

2021: Vol 36 Iss 9

Section

Articles