DESIGN OF VHF AND UHF COMMUNICATIONS AIR/GROUND ANTENNAS

The Harry Diamond Laboratories (HDL) has undertaken the investigation of improved communication antennas for the Federal Aviation Administration (FAA). These antennas are used in VHF (118-136 MHz) and UHF (225-400 MHz) frequency spectrums in air/ground air traffic control operations. The FAA is looking for improved antenna standards in terms of space coverage and environmental durability, in the process of planning replacements for several thousand current operational antennas. HDL has devoted an intensive design search into available technology, and conducted a concurrent analysis of the key variables affecting the performance of FAA antennas during the first six months of this effort. In doing so, it has concentrated on six types of antennas specifically designated for primary consideration by the FAA, namely VHF and UHF dipoles, VHF and UHF medium gain omnidirectional types, and high-gain VHF and UHF directional antennas. Certain constraints were also specified such as limiting sizes and weights, and power capacities. Analysis was also required in related areas such as lightning protection. The two dipole designs were deleted by the FAA, but the remaining results include design recommendations for four of the FAA applications and should prove very useful in establishing future antenna design standards and performance specifications. (Author)

  • Corporate Authors:

    Harry Diamond Laboratories

    2800 Powder Mill Road
    Adelphi, MD  United States  20783

    Federal Aviation Administration

    Systems R&D Service, 800 Independence Avenue, SW
    Washington, DC  United States 
  • Authors:
    • Sindoris, A
    • Farrar, F
    • Schaubert, D
  • Publication Date: 1978-2

Media Info

  • Pagination: 125 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00197303
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FAA-RD-79-7
  • Contract Numbers: DOT-FA78WAI-851
  • Files: NTIS, TRIS, USDOT
  • Created Date: Jul 31 1979 12:00AM