Patent · US Active

Wideband reflectarray using electrically re-focusable phased array feed

US10897075B2 · kind B2 · utility

1Cited by

8References

16Claims

0Family size

Assignee

NORTHROP GRUMMAN SYSTEMS CORPORATION · US

Inventors

Michael E. Cooley · Sterling, US
Bret J. Yon · Bowie, US
David Sall · Owings Mills, US
Robert J. March · Bel Air, US
Scott A. Wilson · Baltimore, US
John Hodge · Bowie, US
Alyssa Harris · Hanover, US
Nicholas Fasanella · Ventura, US

Key dates

Filing date	Nov 30, 2018
Grant date	Jan 19, 2021
Priority date	—
Expiry date	Aug 1, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH01Q19/021
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.