Premium
Millimeter‐Wave Digital Coding Metasurfaces Based on Nematic Liquid Crystals
Author(s) -
Wang Qiang,
Zhang Xin Ge,
Tian Han Wei,
Jiang Wei Xiang,
Bao Di,
Jiang Hao Lin,
Luo Zhang Jie,
Wu Li Ting,
Cui Tie Jun
Publication year - 2019
Publication title -
advanced theory and simulations
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.068
H-Index - 17
ISSN - 2513-0390
DOI - 10.1002/adts.201900141
Subject(s) - beam steering , extremely high frequency , planar , liquid crystal , optics , materials science , millimeter , coding (social sciences) , optoelectronics , beam (structure) , physics , computer science , statistics , computer graphics (images) , mathematics
Metasurfaces provide an unprecedented capability in manipulating electromagnetic waves. In this work, a millimeter‐wave (mmW) digital coding metasurface based on nematic liquid crystals (NLCs) is proposed and realized. By tuning the bias voltage loaded on the NLCs, the effective permittivity of the NLCs substrate is changed, thus providing different reflection phases. As a proof of concept, mmW beam splitting and mmW beam steering at mmW frequencies are demonstrated using a single metasurface platform. The experimental results are in good agreement with numerical simulations. The proposed digital coding metasurfaces have promising applications on planar mmW devices, such as multi‐beam antennas, beam‐scanning antennas, and wave controllers.