A Digital Beamforming Array

reportActive / Technical Report | Accession Number: ADA130015 | Open PDF

Abstract:

An eight element Digital Beamforming DBF array is described. The array has the capability of forming multiple simultaneous beams by converting the RF amplitude and phase of each element to a digital format followed by beamforming in a general purpose computer. The subassemblies necessary at each element for down-conversion and amplification were measured in terms of phase and amplitude matching between elements. Antenna pattern data was gathered and a variety of antenna patterns are presented. Analysis is performed on the patterns to quantify the errors. These errors are compared to the errors measured on the subassemblies to verify the error effects. Author

Author(s):
Loomis, J. M. ; Rose, J. F.
Author Organization(s):
ARMY MISSILE COMMAND REDSTONE ARSENAL AL ADVANCED SENSORS DIRECTORATE
Descriptive Note:
Technical rept.
Pagination:
0100

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
DRSMI-RE-83-21-TR, SBI-AD-E950 404
Monitor Series:
AD-E950 404, DRSMI-RE
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_5.5_Direct; JCA_5.5.1_Communicate Intent and Guidance; JCA_1.3.2_Personnel Management; JCA_5.2_Understand; JCA_1.2.6_Concepts
Modernization Areas:
Microelectronics; Directed Energy
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*BEAM FORMING, *RADAR ANTENNAS, *ANTENNA RADIATION PATTERNS, *ANTENNA ARRAYS, *BEAMS(ELECTROMAGNETIC), SCANNING, SIGNAL PROCESSING, COUPLING(INTERACTION), DIGITAL SYSTEMS, PROCESSING, ARRAYS, PROTOTYPES, REFLECTION, PHASE, REDUCTION, COEFFICIENTS, RECEIVERS, ERRORS, RADAR RECEIVERS, FLOW CHARTING, LINEAR ARRAYS, AMPLIFICATION, RADAR SIGNALS, ANALOG TO DIGITAL CONVERTERS, AMPLITUDE, BEAM STEERING, RADIOFREQUENCY, X BAND, SIDELOBES, HIGH PASS FILTERS, MULTIPLE BEAMS(RADIATION), LENSES, SCHEMATIC DIAGRAMS, RADIATION PATTERNS, HORN ANTENNAS, MIXERS(ELECTRONICS), INTERMEDIATE FREQUENCIES, ANTENNA COMPONENTS, DOWN CONVERTERS, MULTIPLE BEAM ANTENNAS, POWER DIVIDERS, RADIO BEAMS
Field(s)/Group(s):
Active and Passive Radar Detection and Equipment, Radiofrequency Wave Propagation
Keyword(s):
DBF(DIGITAL BEAMFORMING), HARDWARE, SYNCHRONOUS DETECTION, TECHNOLOGY, ROTMAN LENSES
Report Date:
1983 May 01