公开(公告)号：US10598778B2

公开(公告)日：2020-03-24

申请号：US15825338

申请日：2017-11-29

申请人： NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Chia-Yu Yao ,  Shao Chen ,  Chien-Te Yu

IPC分类号： G01S13/38 ,  H01Q21/29 ,  H01Q3/26 ,  G01S7/35 ,  H01Q3/38 ,  H01Q3/42 ,  H04B7/00 ,  H04B7/06

摘要： 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：US10516210B2

公开(公告)日：2019-12-24

申请号：US15848186

申请日：2017-12-20

申请人： NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Chia-Yu Yao ,  Shao Chen ,  Chien-Te Yu

IPC分类号： H01Q3/40 ,  H01Q3/26 ,  H03L7/22 ,  H03L7/18 ,  H01Q3/36 ,  H01Q21/00

摘要： 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.