SURFACE ELECTROMAGNETIC WAVE FIELD STRENGTH MEASUREMENTS ON RAILROAD TRACKS

An investigation is presented of surface electromagnetic wave (SEW) energy distribution on railroad tracks. Radial held distribution of SEW on 112-lb/yd rails was examined utilizing a dipole diode detector. Laboratory and on site measurements were made. The field strength distribution data at frequencies 3,000, 6,000 and 9,733 GH sub z show that the main part of the SEW TE mode energy (almost 90 percent) is on the head of the rail. Use of dielectric augmentation on the side of rails resulted in lower attenuation of the propagating SEW. Thick dielectric strip augmentation data shows enhancement of SEW propagation in agreement with McAulay. The intertrack coupling and the characteristic frequency response versus field strength at varied distances from the source were also examined.

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• Corporate Authors:

  Institute of Electrical and Electronics Engineers (IEEE)

  3 Park Avenue, 17th Floor
  New York, NY  United States  10016-5997
• Authors:
  • Lai, BCH
  • Goben, C A
• Publication Date: 1980-8

Media Info

• Features: References;
• Pagination: p. 919-924
• Serial:
  • IEEE Transactions on Microwave Theory & Techniques
  • Publisher: Institute of Electrical and Electronics Engineers (IEEE)
  • ISSN: 0018-9480

Subject/Index Terms

• TRT Terms: Electromagnetism; Frequency response; Measurement; Railhead; Railroad tracks; Transmission; Waveguides
• Old TRIS Terms: Electromagnetic waveguides; Radio transmission; Track structures
• Subject Areas: Materials; Railroads;

Filing Info

• Accession Number: 00331558
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: Vol. MTT-28 No. 8
• Files: TRIS
• Created Date: Jul 9 1981 12:00AM