Transmission of electromagnetic waves in hollow tubes of metal

  title={Transmission of electromagnetic waves in hollow tubes of metal},
  author={W. L. Barrow},
  journal={Proceedings of the IEEE},
  • W. L. Barrow
  • Published 1 October 1936
  • Geology
  • Proceedings of the IEEE
Electromagnetic energy may be transmitted through the inside of hollow tubes of metal, provided the frequency is greater than a certain critical value; this value is inversely proportional to the tube radius and to the dielectric coefficient for the tube interior. Calculations and measurements of the more important characteristics of this new kind of transmission system have been made, and the conditions for minimum attenuation obtained Terminal devices for connecting a hollow pipe system to a… 
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