THE EFFECTS OF IRREGULARITY SCALE ON USABLE ANTENNA APERTURE

Abstract

It is assumed that a wave is incident on a broadside antenna array after passing through a propagation medium containing refractive-index fluctuations having a Gaussian correlation function. The influence of the irregularities on usable array directivity and effective power gain is explored as a function of the magnitude and scale of the refractive-index fluctuations, and of the extent and position of the scattering region. The domains of Fresnel diffraction (geometrical optics) and Fraunhofer diffraction (wave theory) are distinguished, and within these domains the nature of the array performance is categorized and explored for relative parameter classes.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1968
Accession Number
AD0838819

Entities

People

  • L. A. Manning

Organizations

  • Stanford University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Antenna Apertures
  • Antenna Arrays
  • Antennas
  • Arrays
  • Classification
  • Diffraction
  • Engineering
  • Fresnel Zones
  • Gain
  • Geometry
  • Military Research
  • Optics
  • Power Gain
  • Refractive Index
  • Scattering
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Optical Physics and Photonics.
  • Phased Array Antenna Design.