公开(公告)号：US20200381838A1

公开(公告)日：2020-12-03

申请号：US16723266

申请日：2019-12-20

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Dong Ho CHO ,  Gang Minh LEE ,  Yun Sik KIM

IPC: H01Q15/02 ,  H04B1/04 ,  H04J99/00 ,  H01Q21/06 ,  H04B7/0413

Abstract: Disclosed are a spatial modulation-based transmitter and communication method employing a lens antenna. The spatial modulation-based transmitter includes a plurality of unit antennas, a modulator configured to perform non-orthogonal multiple access and spatial modulation for an input signal, and a controller configured to determine a target unit antenna which will transmit data in a spatial modulation manner at a current time point among the plurality of unit antennas. Each of the unit antennas includes a plurality of antenna units and a lens structure which shifts a phase of an electromagnetic wave output by at least one of the plurality of antenna units. The lens structure shifts the phase so that the plurality of antenna units may have different radiation patterns.

公开(公告)号：US20190027966A1

公开(公告)日：2019-01-24

申请号：US15822343

申请日：2017-11-27

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY (KAIST)

Inventor： Dong Ho CHO ,  Bo Yune Song ,  Gu Ho Jung ,  Chung Hee Lee ,  Ja Hyeon Lee ,  Uoo Yeol Yoon

IPC: H02J50/12 ,  H01F38/14 ,  G06N3/08

Abstract: Disclosed are a primary coil unit having four coils independently controllable and a pickup coil unit having four coils also independently controllable. The proposed power transfer system and the proposed power pickup system can satisfy standard compatibility and improve the efficiency of wireless power transmission. The power transfer device is compatible with various types of conventional power pickup systems and capable of expanding compatibility with a new power pickup system to be developed in future by changing the power transfer magnetic flux pattern. The power pickup device is compatible with various types of conventional power transfer systems and capable of expanding compatibility with a power transfer system to be developed in future. The system including both the power transfer device and the power pickup device is more robust against a deviation.