Near Field Blockage of an Ultra Low Sidelobe Antenna (ULSA). Part 1.

Abstract

Near field blockage of an ultra low sidelobe antenna (ULSA) by several frequently encountered obstacles is studied both experimentally and analytically to determine how the radiation characteristics of the antenna are affected. The results are generalized over a wide range of obstacle sizes and distances for aperture illuminations ranging from conventional reflector-type distributions to ultra low sidelobe distributions. These results demonstrate that the superior ECCM characteristics of the ULSA are maintained in the shipboard environment. Blockage reduction techniques and comprehensive antenna siting analyses are discussed as possible areas of future study. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1977
Accession Number
ADA069984

Entities

People

  • Daniel Davis
  • Stephen G. Winchell

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Bessel Functions
  • Computer Programs
  • Computer Simulations
  • Computers
  • Far Field
  • Geometry
  • L Band
  • Near Field
  • Plane Waves
  • Radiation
  • Radiation Patterns
  • Rotating Antennas
  • Scattering
  • Simulations
  • Two Dimensional
  • X Band

Readers

  • Phased Array Antenna Design.
  • Systems Analysis and Design