An Airport Glide-Path System Using Flush-Mounted, Traveling-Wave Runway Antennas, Volume 2

Abstract

A discussion of a new glide-path system is presented which utilizes conventional airborne receiving equipment to provide a pilot with vertical guidance to touchdown on an airport runway. The system uses 5 flush-mounted runway Antennas to radiate the UHF glide-path signal from the precise destination of the aircraft. Inasmuch as the antennas are in the ground (runway) no image antenna are present and the path becomes virtually independent of the terrain. Also, no component of the system except possible monitor antennas need extend above ground, thereby eliminating obstruction hazards. The basic theory for this endfire, transverse-electric, traveling wave, dielectric-filled antenna is given, together with results of scale-model measurements. Five array antennas containing polystyrene were built, and impedance and phase velocity tests show them to perform within 2% of predicted values.

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Document Details

Document Type
Technical Report
Publication Date
Mar 31, 1961
Accession Number
AD0268301

Entities

People

  • Richard H. McFarland

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Aircraft Equipment
  • Aircraft Landings
  • Aircrafts
  • Antenna Radiation Patterns
  • Dielectric Permittivity
  • Dielectrics
  • Geometry
  • Glide Path Systems
  • Measurement
  • Navigation
  • Radar
  • Radio Beacons
  • Radio Frequency
  • Slot Antennas
  • Transmission Lines
  • United States

Readers

  • Aviation Safety and Air Traffic Management
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Phased Array Antenna Design.