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ZTE Communications ›› 2022, Vol. 20 ›› Issue (1): 63-75.DOI: 10.12142/ZTECOM.202201009

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Dual‑Polarized RIS‑Based STBC Transmission with Polarization Coupling Analysis

ZHOU Mingyong1, CHEN Xiangyu1, TANG Wankai1, KE Jun Chen2, JIN Shi1(), CHENG Qiang2, CUI Tie Jun2   

  1. 1.National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China
    2.State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China
  • Received:2021-05-12 Online:2022-03-25 Published:2022-04-06
  • Contact: JIN Shi
  • About author:ZHOU Mingyong received his B.S. degree in communication engineering from the School of Communication and Information Engineering, Nanjing University of Posts and Telecommunications, China in 2020. He is currently pursuing his M.S. degree with the National Mobile Communications Research Laboratory, Southeast Unversity,China. His research interests include metasurface-based wireless communication system design and implementation.|CHEN Xiangyu received his B.S. degree in information engineering from the School of Information Science and Engineering, Southeast University, China in 2019. He is currently pursuing his M.S. degree with the National Mobile Communications Research Laboratory, Southeast Unversity. His research interests include metasurface-based wireless communication system design and measurement.|TANG Wankai received his B.S. degree in information engineering, M.S. degree in circuits and systems, and Ph.D. degree in communications and information systems from Southeast University, China in 2011, 2014, and 2021, respectively. He worked at National Instruments (Shanghai), USA from 2014 to 2016. He received the Electronics Letters Best Paper Award in 2020 and the China Communications Best Paper Award in 2021. His research interests include modeling and prototyping of metasurface-based wireless communication systems.|KE Jun Chen received his B.S. degree from the School of Instrument Science & Engineering, Southeast University, China in 2016, where he is currently pursuing his Ph.D. degree with the State Key Laboratory of Millimeter Waves, Department of Radio Engineering, Southeast University, China. His research interests include metamaterials, metasurfaces, and array antennas.|JIN Shi (jinshi@seu.edu.cn) received his Ph.D. degree in communications and information systems from Southeast University, China in 2007. From June 2007 to October 2009, he was a research fellow with the Adastral Park Research Campus, University College London, United Kingdom. He is currently with the faculty of the National Mobile Communications Research Laboratory, Southeast University. His research interests include space-time wireless communications, information theory, intelligent communications, and reconfigurable intelligent surfaces. He and his coauthors received the 2010 Young Author Best Paper Award from the IEEE Signal Processing Society and the 2011 IEEE Communications Society Stephen O. Rice Prize Paper Award in the field of communication theory.|CHENG Qiang received his B.S. and M.S. degrees from Nanjing University of Aeronautics and Astronautics, China in 2001 and 2004, respectively, and his Ph.D. degree from Southeast University, China in 2008. He is currently a full professor with the State Key Laboratory of Millimeter Waves, Southeast University. His research interests include metamaterials, tunable microwaves circuits, microwave imaging, and terahertz systems. He was a recipient of the 2010 Best Paper Award from New Journal of Physics. He was awarded China’s Top Ten Scientific Advances of 2010 and the second class National Natural Science Award in 2014.|CUI Tie Jun received his B.S., M.S., and Ph.D. degrees in electrical engineering from Xidian University, China in 1987, 1990, and 1993, respectively. In 1993, he joined the Department of Electromagnetic Engineering, Xidian University, and was promoted to associate professor in 1993. From 1995 to 1997, he was a research fellow with the Institut fur Hochstfrequenztechnik und Elektronik, University of Karlsruhe, Germany. In 1997, he joined the Center for Computational Electromagnetics, Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, USA, first as a postdoctoral research associate and then as a research scientist. In 2001, he was a Cheung-Kong Professor with the Department of Radio Engineering, Southeast University, China. Currently he is the Chief Professor of Southeast University. He is also the founding director of the Institute of Electromagnetic Space, Southeast University. His current research interests include metamaterials and computational electromagnetics. He has published over 500 peer-review journal papers, which have been cited more than 40 000 times (H-Factor 102; Google Scholar). He is the Academician of the Chinese Academy of Science.
  • Supported by:
    the National Key Research and Development Program of China(2018YFA0701602);the National Natural Science Foundation of China (NSFC) under Grants

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Abstract:

The rapid development of the reconfigurable intelligent surface (RIS) technology has given rise to a new paradigm of wireless transmitters. At present, most research works on RIS-based transmitters focus on single-polarized RISs. In this paper, we propose a dual-polarized RIS-based transmitter, which realizes 4-transmit space-time block coding (STBC) transmission by properly partitioning RIS’s unit cells and utilizing the degree of freedom of polarization. The proposed scheme is evaluated through a prototype system that utilizes a fabricated dual-polarized phase-adjustable RIS. In particular, the polarization coupling phenomenon in each unit cell of the employed dual-polarized RIS is modeled and analyzed. The experimental results are in good agreement with the theoretical modeling and analysis results, and an initial research effort is made on characterizing the polarization coupling property in the dual-polarized RIS.

Key words: reconfigurable intelligent surface, space-time coding, dual polarization, coupling modeling, prototyping