Phase-Only Nulling at Symmetric Pattern Locations,

Abstract

Nulls cannot be imposed in ideal linear array antenna patterns with phase-only weight control at locations symmetric with respect to the main beam if the phase perturbations are restricted to be small. If, however, no restriction is placed on the magnitude of the phase perturbations, then phase-only nulling at symmetric pattern locations is possible. Several examples are presented to illustrate symmetric nulling with phase-only control. The phase perturbations are calculated by a nonlinear programming computer algorithm. The cancellation patterns tend to be interferometric in shape and result in significant distortion over much of the pattern. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1983
Accession Number
ADA133128

Entities

People

  • Robert A. Shore

Organizations

  • Rome Laboratory

Tags

DTIC Thesaurus Topics

  • Air Force
  • Amplitude
  • Antennas
  • Arrays
  • Cancellation
  • Classification
  • Computer Programming
  • Computer Programs
  • Computers
  • Distortion
  • Interferometers
  • Linear Arrays
  • Mathematical Programming
  • Nonlinear Programming
  • Perturbations
  • Phase Shift
  • Sidelobes

Fields of Study

  • Physics

Readers

  • Phased Array Antenna Design.