A Simplified Technique for Phase Control of Conformal Arrays

Abstract

One of the most important problems to be overcome in implementing conformal arrays is controlling the element phases for beam steering. A simplified approximate technique for controlling steering phases of conformal arrays on a general surface was developed. The technique is to divide the array into several subarrays and to judiciously locate the elements on the curved surface so that the conventional row -- column phase setting can be used in each subarray. Because of the approximate nature of the technique, some phase errors are introduced. However, for a given array size and shape of the conformal surface, the number of subarrays can be chosen such that phase errors are within a specified limit. Analytical and computed results are presented for the techniques application to arrays on circular and parabolic curves. The results show that in many practical cases the approximate technique can be used with negligible degradation in performance.

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Document Details

Document Type
Technical Report
Publication Date
Mar 10, 1975
Accession Number
ADA007486

Entities

People

  • J. B. Rao
  • J. K. Hsiao

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Arrays
  • Beam Steering
  • Computer Programs
  • Coordinate Systems
  • Curvature
  • Equations
  • Geometry
  • Linear Arrays
  • Military Research
  • Numbers
  • Phase Control
  • Radiation
  • Radiation Patterns
  • Scanning
  • Security
  • Steering
  • Two Dimensional

Readers

  • Applied Combinatorial Optimization and Logic Circuit Design.
  • Phased Array Antenna Design.