PHASED ARRAY ANTENNA WITH WIDE NULL
Assignee
General Electric
Filed as: GENERAL ELECTRIC COMPANY, A CORP. OF NEW YORK
Filed
Jan 22, 1991
Granted
Aug 30, 1994
Location
MEDFORD NJ US
Abstract
An antenna subject to standoff sidelobe barrage jamming exhibits a null in its sidelobe structure at a selectable elevation angle for all azimuth angles of interest. The null can be set to the elevation angles corresponding to the angle of the standoff jammers. The null is generated with the aid of an interferometer associated with each column of the antenna array. The interferometer produces a pattern having a plurality of lobes. The interferometer pattern is phased and amplitude adjusted relative to the antenna pattern of its associated column line array so that subtraction of the patterns causes one or more sidelobe of the antenna pattern to be at least partially canceled. An azimuth beamformer combines the elevation patterns of a plurality of column arrays, each connected to its own interferometer, to produce a pencil beam with a sidelobe structure exhibiting a null at the particular elevation angle.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Sep 20, 1991
Rescinded
Mar 7, 1994
Duration
2 years, 5 months
Inventor
- 1MICHAEL A. KOTT
Record Details
- Patent number
- US 5343211
- Application
- 07644358
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
Browse by Assignee
General ElectricMore from this assignee
HYPERSONIC FLIGHT VEHICLE
General Electric
METHOD OF OBTAINING A FIBER-CONTAINING COMPOSITE
General Electric
SENSOR FOR OPTICALLY SENSING AIR BORNE ACOUSTIC WAVES
General Electric
METHOD FOR THE PREPARATION OF HIGH PURITY ALUMINUM NITRIDE
General Electric
ALKALINE EARTH FLUORIDE ADDITIVE FOR SINTERING ALUMINUM NITRIDE
General Electric
OPTICAL BREAKTHROUGH SENSOR FOR LASER DRILL
General Electric
Related by domain
MISSILE GUIDANCE SYSTEM
Raytheon
APPARATUS FOR CONTROLLING THE POSITION AND DIRECTION OF A LASER BEAM
LASER ALONG BODY TRACKER (SABOT II)
TRW
LASER ALONG-BODY TRACKER (SABOT III)
TRW
ARTICLE COMPRISING A UNIPOLAR SUPERLATTICE LASER
LUCENT TECHNOLOGIES INC.
INTRACAVITY QUANTUM WELL PHOTODETECTOR INTEGRATED WITHIN A VERTICAL-CAVITY SURFACE-EMITTING LASER AND METHOD OF OPERATING SAME
CALIFORNIA, UNIVERSITY OF, THE, REGENTS OF, THE