The ionosphere as a whispering gallery

  title={The ionosphere as a whispering gallery},
  author={Kenneth George Budden and H. G. Martin},
  journal={Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences},
  pages={554 - 569}
  • K. BuddenH. G. Martin
  • Published 6 February 1962
  • Physics
  • Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences
The propagation of radio waves of very low frequency to great distances is conveniently treated by regarding the space between the earth and the ionosphere as a wave-guide. Several authors have found that the least attenuated modes are profoundly affected by the earth’s curvature. This effect is investigated for several models of the ionosphere. It is found, in particular, that for frequencies greater than about 30 kc/s some modes are possible for which the energy is concentrated in a region… 

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