EFFECT OF APERTURE ILLUMINATION ON THE ON-AXIS POWER DENSITY OF A CIRCULAR MICROWAVE ANTENNA

Abstract

The development of two methods of determining the on-axis microwave power density in both the Fresnel and Fraunhofer regions, for circular-aperture antennas with any arbitrary, axially symmetric aperture illumination is described. Both methods have been programmed for digital computation. These methods are described and are applied to a number of different aperture distributions which could conceivably occur in practice. The resultant on-axis fields are compared and some conclusions relating the aperture distribution and the resulting on-axis fields are made.

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Document Details

Document Type
Technical Report
Publication Date
Dec 04, 1963
Accession Number
AD0426479

Entities

People

  • T. R. Lasalle

Organizations

  • Naval Surface Warfare Center Dahlgren Division

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Antenna Apertures
  • Antennas
  • Computers
  • Engineers
  • Equations
  • Errors
  • Far Field
  • Intensity
  • Microwave Antennas
  • Microwaves
  • Near Field
  • Notation
  • Plastic Explosives
  • Radiation
  • Sidelobes
  • Test And Evaluation
  • Weapons

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering