A Digital Beamforming Array

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)

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1983
Accession Number
ADA130015

Entities

People

  • J. F. Rose
  • J. M. Loomis

Organizations

  • United States Army Aviation and Missile Command

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Antenna Arrays
  • Antenna Radiation Patterns
  • Antennas
  • Arrays
  • Beam Forming
  • Converters
  • Detectors
  • Filters
  • Frequency
  • Frequency Bands
  • Measurement
  • Phase
  • Power Dividers
  • Radiation Patterns
  • Signal Processing
  • Transmission Lines

Fields of Study

  • Engineering
  • Physics

Readers

  • Computational Modeling and Simulation
  • Phased Array Antenna Design.