Optimal Properties of the Circular Array for Use as an Adaptive Antenna.

Abstract

In order to achieve good resolution with few elements, highly thinned arrays used in conjunction with adaptive antenna pattern control are commonly employed. This paper develops thinned array configurations optimized in performance in accordance with specific criteria. These criteria are used to optimize the element positions within the array considering both the close-in nulling resolution, and the average coverage area over a fixed, circular field of view for which it is desired that system users have positive link margin to a satellite at geosynchronous altitude. It is determined that the circular array configuration, with elements equi-spaced on the circle, generally produces the best close-in nulling resolution against arbitrary interference scenarios for large values of D/lambda. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Apr 17, 1980
Accession Number
ADA088592

Entities

People

  • Joseph T. Mayhan

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Arrays
  • Artificial Satellites
  • Bandwidth
  • Bessel Functions
  • Boundaries
  • Cancellation
  • Computer Simulations
  • Geometry
  • Geosynchronous Satellites
  • Linear Arrays
  • Power Levels
  • Radiation
  • Radiation Patterns
  • Sidelobes
  • Simulations
  • Steering
  • Two Dimensional

Fields of Study

  • Engineering

Readers

  • Image Processing and Computer Vision.
  • Radar Systems Engineering.
  • Space Exploration and Orbital Mechanics.

Technology Areas

  • Space
  • Space - Orbital Debris
  • Space - Space Objects