Summary of Radiation Pattern Measurements Using the LES-7 Lens and Variable Power Dividing (VPD) Feed Network at 7.68 GHz

Abstract

A comparison between experimental and calculated radiation pattern data for a multiple-beam antenna is presented. The antenna consists of a waveguide lens aperture excited by a 19-element feed horn array and variable beam-forming network. The pattern data presented varies from a narrow high-gain beam, equivalent to that of a steerable paraboloid, to the earth-coverage pattern of a wide coverage communication satellite. Also discussed are the results of the earth-coverage measurements when either one or two feeds are turned off so as to produce nulls in the earth-coverage pattern.

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Document Details

Document Type
Technical Report
Publication Date
May 27, 1975
Accession Number
ADA011946

Entities

People

  • Bing M. Potts

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Antennas
  • Artificial Satellites
  • Beam Forming
  • Beam Steering
  • Communication Satellites
  • Communication Systems
  • Computer Programs
  • Computers
  • Elements
  • Frequency
  • Gain
  • Lens Antennas
  • Losses
  • Multiple Beam Antennas
  • Radiation Patterns
  • Satellite Communications

Fields of Study

  • Physics

Readers

  • Phased Array Antenna Design.

Technology Areas

  • Space
  • Space - Satellites