公开(公告)号：US09917377B2

公开(公告)日：2018-03-13

申请号：US15545896

申请日：2016-02-01

申请人： Mitsubishi Electric Corporation

发明人： Makoto Matsuki ,  Kazunari Kihira ,  Masataka Otsuka

IPC分类号： H01Q25/02 ,  H01Q3/34 ,  G01S3/32 ,  G01S13/44 ,  H01Q3/26

CPC分类号： H01Q25/02 ,  G01S3/32 ,  G01S7/2813 ,  G01S13/44 ,  G01S13/4454 ,  G01S13/4463 ,  G01S2013/0263 ,  H01Q3/2617 ,  H01Q3/2682 ,  H01Q3/34 ,  H01Q3/38 ,  H01Q21/061

摘要： Disclosed is an antenna device in which an excitation phase changing unit (4) for changing the excitation phases of element antennas (2-1n) to (2-8n) by controlling phase shifters (3-1n) to (3-8n) dependently on preset phase values is disposed, and every time the excitation phases are changed by the excitation phase changing unit (4), a radiation pattern forming unit (12) shifts the phases of a sum signal and a difference signal, and forms a monopulse sum pattern by time-integrating the sum signal after phase shift and also forms a monopulse difference pattern by time-integrating the difference signal after phase shift.

公开(公告)号：US10142000B2

公开(公告)日：2018-11-27

申请号：US15562784

申请日：2015-04-15

申请人： Mitsubishi Electric Corporation

发明人： Kazunari Kihira ,  Makoto Matsuki ,  Hikaru Watanabe ,  Hiroki Iura ,  Masataka Otsuka

IPC分类号： H04B7/04 ,  H04B7/06 ,  H04B7/0452 ,  H04B7/0408

摘要： A sub-array number determinator is provided to determine a number of sub-arrays to be allocated to each of user terminals detected by a terminal position detector on a basis of relation between positions of the user terminals and a position of an antenna apparatus. An antenna selector selects sub-arrays for the number determined by the sub-array number determinator from among the sub-arrays and allocates the selected sub-arrays for the determined number to each of the user terminals. This structure is capable of preventing interference among beams for user terminals and providing excellent communication quality to the user terminals even in condition where the user terminals are adjacent to each other.