57‐2: Glass‐embedded Electromagnetic Surface for Energy‐Saving Future Wireless Communication

Abstract

In this paper, the concept of an optically transparent glass‐embedded frequency selective surface (FSS) and its details including the functionalities of the FSS, application scenarios, design methodology, materials/processes for transparency implementation and verifications are described. The solution is expected to be highly instrumental in future wireless scenarios.

70‐3: Tunability of Reconfigurable Intelligent Surface (RIS) using Liquid Crystal (LC) according to Various Bias Voltage Levels

“…To resolve disadvantages of the incumbent solutions, passive Frequency Selective Surface (FSS) is suggested. It is designed to efficiently relay electromagnetic wave between Tx (Transmitter) and Rx (Receiver) by minimizing extra reflections so signal strength can be maintained even at a long propagation distance [4]. Recently, tunable FSS, which is called as Reconfigurable Intelligent Surface (RIS) in advanced 5G and 6G area, is being actively studied for coverage extension purpose through active control of signal reflection toward desired directions.…”