公开(公告)号：US20100026563A1

公开(公告)日：2010-02-04

申请号：US12525008

申请日：2008-01-16

申请人： Christopher James Alder ,  Graeme Neil Crisp ,  Barry John Hughes ,  Patrick David Lawrence Beasley ,  Jeffrey Powell ,  Michael Dean ,  Robert David Hodges

发明人： Christopher James Alder ,  Graeme Neil Crisp ,  Barry John Hughes ,  Patrick David Lawrence Beasley ,  Jeffrey Powell ,  Michael Dean ,  Robert David Hodges

IPC分类号： G01S13/00 ,  H01Q3/00

CPC分类号： H01Q25/008 ,  G01S7/023 ,  G01S7/352 ,  H01Q1/3233 ,  H01Q21/0031 ,  H01Q21/065 ,  H03B23/00

摘要： An antenna system comprising an array of antenna elements, the array comprising a plurality of groups of antenna elements wherein each group comprises one or more antenna elements arranged in series, and wherein the system further comprises first phase-control means for performing the function of introducing respective phase-shifts to transmitted or received signals passed to or received from each of said groups to provide beamforming and second phase-control means for performing said function with respect to a sub-set of said groups. An antenna system of the invention allows two radar beam patterns having different spatial characteristics to be generated using a single antenna system. The invention also provides a radar system incorporating an antenna system of the invention.

摘要翻译： 一种包括天线元件阵列的天线系统，所述阵列包括多组天线元件，其中每组包括串联布置的一个或多个天线元件，并且其中所述系统还包括用于执行引入功能的第一相位控制装置 对发送或接收的每个所述组的信号进行各自的相移以提供波束形成和用于相对于所述组的子集执行所述功能的第二相位控制装置。 本发明的天线系统允许使用单个天线系统来产生具有不同空间特性的两个雷达波束图案。 本发明还提供了一种结合本发明的天线系统的雷达系统。