公开(公告)号：US10833405B2

公开(公告)日：2020-11-10

申请号：US15760429

申请日：2016-07-21

Applicant: Raytheon Company

Inventor： Kenneth W. Brown ,  Alan Rattray ,  Travis B. Feenstra ,  Samuel De La Torre ,  Johan A. Kullstam ,  Arlin L. Pierce

IPC: H01Q3/20 ,  H01Q3/18 ,  H04B7/06 ,  H01Q3/10 ,  H01Q19/10 ,  H01Q19/19

Abstract: Steerable antenna on platforms, fixed or mobile, are tracked to form an RF communication link by setting the width of the main lobe of the antenna beam pattern to be greater than the initial pointing uncertainty region and then concurrently scanning and progressively reducing the widths of the main lobes as the pointing uncertainty region is reduced to first acquire and then track the opposing antenna. The width of the main lobe is reduced such that the width of the main lobe is approximately fixed for each block. The antennas at opposite ends of the communication link may be scanned with scan patterns that are orthogonal to each other such that the demodulation of the received signal levels to signal direction of arrival at each platform is solely a function of the scan pattern of the receive antenna.

公开(公告)号：US20180277948A1

公开(公告)日：2018-09-27

申请号：US15760429

申请日：2016-07-21

Applicant: Raytheon Company

Inventor： Kenneth W. Brown ,  Alan Rattray ,  Travis B. Feenstra ,  Samuel De La Torre ,  Johan A. Kullstam ,  Arlin L. Pierce

IPC: H01Q3/20 ,  H01Q19/10

CPC classification number: H01Q3/20 ,  H01Q3/10 ,  H01Q3/18 ,  H01Q19/10 ,  H01Q19/19 ,  H04B7/0617

Abstract: Steerable antenna on platforms, fixed or mobile, are tracked to form an RF communication link by setting the width of the main lobe of the antenna beam pattern to be greater than the initial pointing uncertainty region and then concurrently scanning and progressively reducing the widths of the main lobes as the pointing uncertainty region is reduced to first acquire and then track the opposing antenna. The width of the main lobe is reduced such that the width of the main lobe is approximately fixed for each block. The antennas at opposite ends of the communication link may be scanned with scan patterns that are orthogonal to each other such that the demodulation of the received signal levels to signal direction of arrival at each platform is solely a function of the scan pattern of the receive antenna.

公开(公告)号：US20160164174A1

公开(公告)日：2016-06-09

申请号：US14561937

申请日：2014-12-05

Applicant: RAYTHEON COMPANY

Inventor： Johan A. Kullstam

IPC: H01Q3/34

CPC classification number: H01Q3/34 ,  H01Q3/26 ,  H01Q3/36

Abstract: An antenna array system includes a plurality of antenna array elements and an array controller in communication with each of the array elements. Each array element further includes an antenna, a computing device, and a storage device maintaining a position vector uniquely identifying the position of its antenna within the array. The array controller broadcasts, to each array element, a signal including a direction vector representative of a desired beam steering direction. Employing their respective computing devices, each array element calculates its phase based upon stored position vector and the received direction vector. The antenna of each array element further emits an electromagnetic wave based upon its calculated phase. The net electromagnetic wave resulting from combination of the respective emissions of the antenna array elements is aligned with the desired beam steering direction.

Abstract translation: 天线阵列系统包括多个天线阵列元件和与每个阵列元件通信的阵列控制器。 每个阵列元件还包括一个天线，一个计算设备和一个保存一个位置矢量的存储设备，该位置矢量唯一地识别阵列内天线的位置。 阵列控制器向每个阵列元件广播包括表示期望的光束转向方向的方向矢量的信号。 使用它们各自的计算设备，每个阵列元素基于存储的位置矢量和接收到的方向矢量来计算其相位。 每个阵列元件的天线基于其计算的相位进一步发射电磁波。 由天线阵列元件的相应发射的组合产生的净电磁波与期望的光束转向方向对齐。