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Effects of mountains with smooth crests on wave propagation

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3 Author(s)
Shkarofsky, I. ; RCA Victor Company, Ltd., Montreal, Canada ; Neugebauer, H.E.J. ; Bachynski, M.

A new method of solving the problem of diffraction of EM waves by the smooth crest of a perfectly reflecting cylindrical mountain has been previously reported. This paper presents the results in a form more suitable for practical applications. The theory is extended, and good agreement with model experiments is obtained for scattering angles up to 5 degrees. The procedure for including the effects of reflections from the ground on either side of the mountain is also indicated. A few examples illustrate cases encountered in practice, and exhibit effects up to 8 db compared with knife-edge diffraction.

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Antennas and Propagation, IRE Transactions on  (Volume:6 ,  Issue: 4 )