LIQUID CRYSTAL-BASED TRANSMISSIVE RECONFIGURABLE INTELLIGENT SURFACE DEVICE AND RECONFIGURABLE INTELLIGENT SURFACE UNIT CELL STRUCTURE THEREFOR

WIPO Patent Application WO/2024/072077

A1

The present disclosure relates to a liquid crystal (LC)-based transmissive reconfigurable intelligent surface (RIS) device in a wireless communication system and a liquid crystal-based RIS unit cell structure therefor. A liquid crystal-based transmissive RIS device in a wireless communication system, according to an embodiment of the present disclosure, comprises: control voltage application lines; a plurality of liquid crystal-based transmissive RIS unit cells to which a control voltage is applied through the control voltage application lines; and a RIS controller which applies the control voltage to the plurality of liquid crystal-based transmissive RIS unit cells through the control voltage application lines so as to control resonators in the plurality of liquid crystal-based transmissive RIS unit cells to operate at a resonance frequency, wherein each of the plurality of liquid crystal-based transmissive RIS unit cells includes a first metal pattern operating as a first resonator and a second metal pattern operating as a second resonator, and at least a portion of the first metal pattern and the second metal pattern are physically spaced apart from each other.

OH JUNHWA (KR)
OH JUNGSUEK (KR)
KIM JAEHOON (KR)

PCT/KR2023/014990

April 04, 2024

September 27, 2023

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SAMSUNG ELECTRONICS CO LTD (KR)
SEOUL NAT UNIV R&DB FOUNDATION (KR)

H01Q15/00; H01P7/08; H01Q1/38

LEE, Keon-Joo et al. (KR)

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