Evaluation of Thomson/CSF Five-Bay VOR Antenna.

Abstract

A stacked five-bay VOR antenna was evaluated at the National Aviation Facilities Experimental Center (NAFEC). The antenna was designed for use with a conventional very high frequency omnidirectional radio range (VOR) system to reduce multipath effects by diminishing ground reflections. Tests included airborne and ground measurements to assure operational compatibility of the antenna with FAA transmitting equipment. Measurements were made on the complete array, bays, and antenna elements. Test results indicated that the bearing error was marginal and the large sidelobes caused multipath reflection from nearby obstacles. A computer program used for the analysis of vertical plane radiation patterns in stacked arrays is included. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1977
Accession Number
ADA046756

Entities

People

  • James G. Dong

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Air Navigation
  • Aircrafts
  • Altitude
  • Antennas
  • Arrays
  • Coaxial Cables
  • Computers
  • Frequency
  • Measurement
  • Navigation
  • Power Dividers
  • Radiation
  • Radiation Patterns
  • Radio Navigation
  • Radio Ranges (Transmitters)
  • Scattering
  • United States

Fields of Study

  • Engineering
  • Physics

Readers

  • Aviation Safety and Air Traffic Management
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Radar Systems Engineering.