Antenna Gain Loss and Pattern Degradation due to Transmission Through Dielectric Radomes

Abstract

A computer model for axially symmetric dielectric radomes in the near field of a circular aperture has been developed. This model, based on a method of moments solution for bodies of revolution. is used to determine the electric field pattern of a linearly polarized circular aperture radiation through a dielectric radome. The program is written in FORTRAN and can accommodate rotationally symmetric radome shapes. Arbitrary illumination distributions for the aperture can be specified, and phased scanning of the aperture in both azimuth and elevation is allowed. Computational run time has been reduced by taking advantage of mode symmetry, A separate program has been developed to compute grain. and together these programs are used to determine the pattern degradation and gain loss due to the presence of a radome in the near field.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1993
Accession Number
ADA267242

Entities

People

  • Karl A. Klopp

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Cyber

DTIC Thesaurus Topics

  • Antenna Radiation Patterns
  • Antennas
  • Bodies
  • Bodies Of Revolution
  • Cartesian Coordinates
  • Computers
  • Dielectric Permittivity
  • Electric Fields
  • Far Field
  • Geometric Forms
  • Geometry
  • Integral Equations
  • Method Of Moments
  • Near Field
  • Radiation
  • Radiation Patterns
  • Shape

Fields of Study

  • Physics

Readers

  • Microwave Engineering.
  • Phased Array Antenna Design.
  • Structural Dynamics.