DEVELOPMENT AND DEMONSTRATION OF W-LINE COMMUNICATIONS WAVEGUIDE AND COMPONENTS FOR HIGH SPEED GROUND TRANSPORTATION

There have been developed and demonstrated, a continuous-access waveguide and accessory components for use in providing non-radiating communications with a high-speed vehicle on a track. The waveguide has the form of an open-sided TEM-mode transmission line; coupling to a vehicle is provided by a non-contacting directional coupler on board the vehicle. The waveguide assembly operates in the VHF range, giving channel capacity for several TV channels and other services with no appreciable distortion. The line has a square outer conductor with one side open but protected by a cover of dielectric sheet. It has a round inner conductor supported by beads of dielectric sheet. The line is intended to be self-supporting between posts. It may be assembled from sections with expansion joints as may be required. (Author)

• Corporate Authors:

  Wheeler Laboratories, Incorporated

  Smithtown, NY  United States 
• Authors:
  • Koffman, I
  • Lodwig, R
  • Redlien, H
  • Wheeler, H
• Publication Date: 1969-12

Media Info

• Pagination: 78p* p.

Subject/Index Terms

• TRT Terms: Communications; High speed ground transportation; High speed track; Tracked vehicles; Waveguides
• Old TRIS Terms: High speed tracked vehicles
• Subject Areas: Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00039190
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: WL-1611A Final Rpt
• Contract Numbers: DOT-FR-9-0022
• Files: TRIS
• Created Date: Nov 24 1972 12:00AM