Dual-PolarizedRIS-BasedSTBCTransmission withPolarizationCouplingAnalysis

• 作者: ZHOU Mingyong CHEN Xiangyu TANG Wankai KE Jun Chen JIN Shi CHENG Qiang CUI Tie Jun
• 来源期刊: 中兴通讯技术（英文版）
• 年，卷（期）: 2022,（1）
• 所属期刊栏目: Special Topic
• 页码范围: 63-75
• 页数: 13页
• 语种: 英文
• DOI: 10.12142/ZTECOM.202201009

摘要

The rapid development of the reconfigurable intelligent surface (RIS) technology has given rise to a new paradigm of wireless trans-mitters. 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 re-search effort is made on characterizing the polarization coupling property in the dual-polarized RIS.