公开(公告)号：EP3178178A1

公开(公告)日：2017-06-14

申请号：EP15729713.6

申请日：2015-06-05

Applicant: Raytheon Company

Inventor： SIKINA, Thomas V. ,  SCHUSS, Jack J. ,  HILLIARD, Joseph E. Jr.

IPC: H04B17/00 ,  H04B17/21 ,  H04B7/08 ,  H01Q3/26

CPC classification number: H04B5/0043 ,  G01D18/00 ,  H01Q3/267 ,  H04B7/0865 ,  H04B17/0085 ,  H04B17/21

Abstract: Described embodiments calibrate an array antenna using near-field antenna measurements individually for each antenna element in an antenna under test (AUT). A signal is received at a first AUT antenna element from an antenna probe assembly by transmitting from the antenna probe assembly at each of multiple known probe locations in a near-field of the AUT. A signal is received at each probe location by transmitting from the first antenna element of the AUT to the antenna probe assembly. The received signals are combined into a combined signal for the first antenna element that de-correlates multi-path in the combination result. The combined signal is processed to generate a calibration coefficient for the first AUT antenna element. Remote boundary condition (RBC) testing is performed to reduce temporal instability. The multiple known probe locations lie on one of the following: a planar surface, a cylindrical surface, and a spherical surface.

Abstract translation: 所描述的实施例使用测试中的天线（AUT）中的每个天线元件的近场天线测量来校准阵列天线。 通过在AUT的近场中的多个已知探测器位置中的每一个处从天线探测器组件发射来自天线探测器组件的在第一AUT天线元件处接收信号。 通过从AUT的第一天线元件发射到天线探测器组件，在每个探测器位置接收信号。 接收到的信号被组合成用于第一天线单元的组合信号，其使组合结果中的多路径失相关。 处理组合信号以生成第一AUT天线元件的校准系数。 执行远程边界条件（RBC）测试以减少时间不稳定性。 多个已知的探头位置位于以下之一上：平面，圆柱面和球面。