Improved Sidelobe Performance of Array Antennas with the Use of Overlapping Sub-Array Architecture

Abstract

Array antennas with sub-array architecture are frequently employed in phased array systems. However, the sub-array architecture can introduce severe pattern degradation in the form of higher sidelobes that arise as the frequency is changed or when multiple beams are generated by combining outputs of sub-arrays with a digital beam former. This report presents results of an investigation on the use of overlapping sub-arrays for improving the sidelobe performance.

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Document Details

Document Type
Technical Report
Publication Date
Jun 16, 2000
Accession Number
ADA379420

Entities

People

  • J. B. Rao
  • S. R. Rengarajan

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Antennas
  • Arrays
  • Bandwidth
  • Beam Forming
  • Computations
  • Degradation
  • Engineering
  • Frequency
  • Frequency Shift
  • Genetic Algorithms
  • Information Operations
  • Linear Arrays
  • Military Research
  • Phase Shift
  • Phased Arrays
  • Sidelobes
  • Steering

Fields of Study

  • Engineering

Readers

  • Phased Array Antenna Design.