Geodesic Paths of an Ellipsoid-Mounted Antenna.

Abstract

In applying the high frequency ray technique (GTD) to the radiation problems of an Ellipsoid-mounted antenna, it is essential to determine the geodesic paths on the surface. An efficient, approximate solution for the geodesic paths on the ellipsoid surface, which in turn can be used to model an aircraft or missile fuselage is studied here. Another elaborate method for the geodesic paths emp loying the calculus of variations is also presented to show the validity of the approximation solution. Typical ellipsoid geometries were chosen and tested for various antenna locations on those surfaces. Good agreement between both methods within the significant energy region confirms that the geodesic paths are efficiently solved via this numerical approach. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1982
Accession Number
ADA116453

Entities

People

  • C. D. Chuang
  • Jeung G. Kim
  • Nan Wang

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Air Platforms
  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Calculus
  • Calculus Of Variations
  • Cartesian Coordinates
  • Coordinate Systems
  • Curvature
  • Differential Geometry
  • Diffraction
  • Electric Current
  • Electrical Engineering
  • Ellipsoids
  • Geodesics
  • Geometry
  • Government Procurement
  • Governments
  • Planar Structures
  • Radiation

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering