Time Domain Aperture Antenna Study. Volume 2

Abstract

This research employs a direct time domain model applicable to aperture antennas of any shape excited by fields of any form in space and time to study theoretically the electromagnetic far fields of a paraboloid reflector when fed by a transverse electromagnetic (TEM) horn antenna. First, the TEM horn antenna is considered as an aperture antenna with an arbitrary excitation V(t) applied to its apex. The time domain model is then applied to determine the electric far fields of the TEM horn, and the theoretical results are compared with published experimental data on a relative basis. Reasonable agreement is obtained. Approximate closed form solutions for the electric far fields of the TEM horn in the azimuth plane are also found. Secondly, the TEM horn is studied in terms of current sheets using the vector potential formulation in order to confirm the approximate closed form solutions found in the azimuth plane using the aperture model.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1974
Accession Number
ADA002144

Entities

People

  • Hugh C. Maddocks

Organizations

  • University of Vermont

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Antenna Radiation Patterns
  • Antennas
  • Biconical Antennas
  • Computer Programs
  • Computers
  • Digital Computers
  • Electromagnetic Fields
  • Engineering
  • Far Field
  • Horn Antennas
  • New York
  • Plastic Explosives
  • Radiation
  • Radiation Patterns
  • Reflectors

Fields of Study

  • Physics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Phased Array Antenna Design.
  • Structural Dynamics.

Technology Areas

  • Space
  • Space - Space Objects