VARIABLE-COVERAGE COMMUNICATIONS ANTENNA FOR LES-7

Abstract

An experimental model of the variable-coverage communications antenna system for the LES-7 spacecraft is described. Consisting of a waveguide lens, a 19-horn feed cluster, and a combiner switch, the system will permit selection of the antenna pattern that best matches a desired coverage on earth. The coverages realizable are of many sizes and shapes, and extend from that of a 3 deg pencil beam to a full hemisphere. A computer study of this antenna system gave results in good agreement with measurement. The salient features of this study are also described.

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Document Details

Document Type
Technical Report
Publication Date
Oct 17, 1969
Accession Number
AD0700760

Entities

People

  • Andre R. Dion

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Amplitude
  • Antenna Configurations
  • Antennas
  • Artificial Satellites
  • Bandwidth
  • Computers
  • Frequency
  • Geometry
  • Lens Antennas
  • Measurement
  • Multiple Beam Antennas
  • Radiation
  • Radiation Patterns
  • Reflectors
  • Refractive Index
  • Two Dimensional

Readers

  • Computational Fluid Dynamics (CFD)
  • Phased Array Antenna Design.

Technology Areas

  • Space
  • Space - Satellites