System and Method for wireless power transfer having receiving power based beam scanning algorithm to achieve optimized transfer efficiency

• Main Authors: MUHAMMAD MIFTAHUL, YUN CHAE WON, CHOI KAE WON, NGUYEN MINH TRAN, PARK JE HYEON
• Format: Patent
• Language: English; Korean
• Published: 23.03.2023
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY; TRANSMISSION

Disclosed is a system for wireless power transmission, which may realize a received power-based beam scanning algorithm for optimizing transmission efficiency by utilizing a reconfigurable intelligent surface (RIS). To this end, the system for wireless power transmission is characterized by comprising: a transmission end having a first antenna composed of a plurality of first reconfigurable intelligent surface (RIS) unit cells; a RIS array block in which a rectangular-shaped RIS tile, composed of a plurality of second RIS unit cells, is partially aligned in plural; and a receiving end having a second antenna composed of a plurality of third RIS unit cells. 지능형 반사표면(RIS: Reconfigurable Intelligent Surface)을 활용하여 전송 효율 최적화를 위한 수신 전력 기반 빔 스캐닝 알고리즘을 구현하는 무선 전력 전송 시스템이 개시된다. 상기 무선 전력 전송 시스템은, 다수의 제 1 RIS(Reconfigurable Intelligent Surface) 단위 셀로 이루어진 제 1 안테나를 갖는 송신단, 다수개의 제 2 RIS 단위 셀로 이루어진 직사각형 모양의 RIS 타일이 다수개로 부분배열되어 구성되는 RIS 어레이 블럭, 및 다수개의 제 3 RIS 단위 셀로 이루어진 제 2 안테나를 갖는 수신단을 포함하는 것을 특징으로 한다.