TY - JOUR
T1 - Independently Polarization Manipulable Liquid- Crystal -Based Reflective Metasurface for 5G Reflectarray and Reconfigurable Intelligent Surface
AU - Kim, Hogyeom
AU - Oh, Seongwoog
AU - Bang, Seungwoo
AU - Yang, Hyunjun
AU - Kim, Byeongjin
AU - Oh, Jungsuek
N1 - Publisher Copyright:
© 1963-2012 IEEE.
PY - 2023/8/1
Y1 - 2023/8/1
N2 - This study presents a new class of independently polarization manipulable liquid-crystal (LC)-based reflective metasurface (RMS) antenna. To the best of the authors' knowledge, this study first introduces independent polarization controllability of the LC-based RMS in mmWave. Two LC layers are embedded into the proposed structure for independent manipulation of the polarization. Isolation topologies, such as rectangular patch shape and metal strip ground, are used to enhance polarization purity, achieving compact bias configuration. The independent polarization controllability and antenna performance, such as aperture efficiency, sidelobe level (SSL), and beam coverage, are validated as a reflectarray. The proposed antenna has a maximum aperture efficiency of 22.5% and beam coverage of over 120°. In addition, the proposed metasurface is used to achieve link connectivity as a reconfigurable intelligent surface (RIS) at millimeter-wave (mmWave) 5G. The demonstration confirms a small-aperture RIS concept, considering spillover and taper efficiencies.
AB - This study presents a new class of independently polarization manipulable liquid-crystal (LC)-based reflective metasurface (RMS) antenna. To the best of the authors' knowledge, this study first introduces independent polarization controllability of the LC-based RMS in mmWave. Two LC layers are embedded into the proposed structure for independent manipulation of the polarization. Isolation topologies, such as rectangular patch shape and metal strip ground, are used to enhance polarization purity, achieving compact bias configuration. The independent polarization controllability and antenna performance, such as aperture efficiency, sidelobe level (SSL), and beam coverage, are validated as a reflectarray. The proposed antenna has a maximum aperture efficiency of 22.5% and beam coverage of over 120°. In addition, the proposed metasurface is used to achieve link connectivity as a reconfigurable intelligent surface (RIS) at millimeter-wave (mmWave) 5G. The demonstration confirms a small-aperture RIS concept, considering spillover and taper efficiencies.
KW - Liquid crystal
KW - polarization control
KW - reconfigurable intelligent surface (RIS)
KW - reflectarray
KW - reflective metasurface (RMS) antenna
UR - https://www.scopus.com/pages/publications/85162621894
U2 - 10.1109/TAP.2023.3283136
DO - 10.1109/TAP.2023.3283136
M3 - Article
AN - SCOPUS:85162621894
SN - 0018-926X
VL - 71
SP - 6606
EP - 6616
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 8
ER -