EVALUATION OF MODEL LENS-REFLECTOR-TYPE COMMUNICATIONS SATELLITE.

Abstract

A 5-ft-diameter spherical model of a unique design of a non-oriented high-altitude passive communications satellite was evaluated for monostatic and bistatic performance with vertical, horizontal, and circular polarizations from 2 to 8 kmc. The design utilized thin lens-reflector elements covering the sphere and having a diffractionlimited design beam width of 17 deg at 5 kmc. The model showed a substantial gain over a simple sphere, but exhibited large signal fluctuations. The fluctuations were dampened by placing the reflective elements on a 10-ft radius of curvature; this indicated the possibility of a constant return from a full-size design. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1963
Accession Number
AD0424174

Entities

Organizations

  • Goodyear Aerospace

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Altitude
  • Artificial Satellites
  • Circular Polarization
  • Coverings
  • Curvature
  • Diameters
  • Geometric Forms
  • Geometry
  • High Altitude
  • Lines (Geometry)
  • Polarization
  • Reflectors
  • Test And Evaluation

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Mechanical Engineering/Mechanics of Materials.
  • Phased Array Antenna Design.

Technology Areas

  • Space
  • Space - Orbital Debris