公开(公告)号：US20200176858A1

公开(公告)日：2020-06-04

申请号：US16206221

申请日：2018-11-30

Applicant: Northrop Grumman Systems Corporation

Inventor： Michael E. Cooley ,  Bret J. Yon ,  David Sall ,  Robert J. March ,  Scott A. Wilson ,  John Hodge ,  Alyssa Harris ,  Nicholas Fasanella

IPC: H01Q1/28 ,  H01Q1/10 ,  H01Q3/06 ,  H01Q15/14 ,  H01Q19/18

Abstract: A planar reflectarray system provides for bandwidth broadening by employing a tunable (amplitude and phase) feed array. The tunable feed array is adjustable in amplitude and phase to compensate for aberrations by enabling feed re-focusing and field matching. The techniques modestly increase the size of the feed array and use active tuning to effectively correct for de-focusing when operating reflectarrays at frequencies away from the tuned center frequency.

公开(公告)号：US10897075B2

公开(公告)日：2021-01-19

申请号：US16206221

申请日：2018-11-30

Applicant: Northrop Grumman Systems Corporation

Inventor： Michael E. Cooley ,  Bret J. Yon ,  David Sall ,  Robert J. March ,  Scott A. Wilson ,  John Hodge ,  Alyssa Harris ,  Nicholas Fasanella

IPC: H01Q19/10 ,  H01Q1/28 ,  H01Q1/10 ,  H01Q19/18 ,  H01Q15/14 ,  H01Q3/06

Abstract: A planar reflectarray system provides for bandwidth broadening by employing a tunable (amplitude and phase) feed array. The tunable feed array is adjustable in amplitude and phase to compensate for aberrations by enabling feed re-focusing and field matching. The techniques modestly increase the size of the feed array and use active tuning to effectively correct for de-focusing when operating reflectarrays at frequencies away from the tuned center frequency.