公开(公告)号：US20190162835A1

公开(公告)日：2019-05-30

申请号：US15825338

申请日：2017-11-29

Applicant: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： CHIA-YU YAO ,  SHAO CHEN ,  CHIEN-TE YU

IPC: G01S13/38 ,  G01S7/35 ,  H01Q3/26 ,  H01Q21/29

CPC classification number: G01S13/38 ,  G01S7/352 ,  H01Q3/26 ,  H01Q3/38 ,  H01Q3/42 ,  H01Q21/29 ,  H04B7/00 ,  H04B7/0617

Abstract: A phase controller for an antenna array includes a determination circuit, determining a direction index of the antenna array, and calculating a phase index according to the direction index according to a congruence modulo equation; a switching box, selecting L first frequency signals with L different first phases among K first frequency signals with K different first phases according to the phase index, wherein L and K are integer larger than 1, and L is not larger than K; and a frequency synthesizing module, comprising L phase-coherent PLL frequency synthesizers for receiving the L first frequency signals with the L different first phases to generate L second frequency signals with L different second phases to L antennae of the antenna array, wherein a second frequency of the second frequency signals is larger than a first frequency of the first frequency signals.

公开(公告)号：US20190190148A1

公开(公告)日：2019-06-20

申请号：US15848186

申请日：2017-12-20

Applicant: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： CHIA-YU YAO ,  SHAO CHEN ,  CHIEN-TE YU

IPC: H01Q3/40 ,  H01Q3/26 ,  H03L7/18 ,  H03L7/22

Abstract: A phase controller for an antenna array includes a determination circuit, determining a direction index of the antenna array, and calculating a phase index according to the direction index according to a congruence modulo equation; a switching box, selecting L first frequency signals with L different first phases among K first frequency signals with K different first phases according to the phase index, wherein L and K are integer larger than 1, and L is not larger than K; and a frequency synthesizing module, comprising L phase-coherent PLL frequency synthesizers for receiving the L first frequency signals with the L different first phases to generate L second frequency signals with L different second phases to L antennae of the antenna array, wherein a second frequency of the second frequency signals is larger than a first frequency of the first frequency signals.