High‐frequency expression for the field in the caustic region of a cylindrical reflector using Maslov's method
- 1 May 1987
- journal article
- Published by American Geophysical Union (AGU) in Radio Science
- Vol. 22 (3) , 357-366
- https://doi.org/10.1029/rs022i003p00357
Abstract
High‐frequency expressions in the caustic region are derived for the wave reflected by a circular and a parabolic cylindrical reflector using Maslov's method when a plane wave is incident obliquely. Maslov's method is a systematic procedure for predicting the field in the caustic region combining the simplicity of ray and generality of the transform method. Numerical computations are made for the field pattern around the caustic or cusp region and the variation of peak positions of the reflected field with respect to the incident angle.Keywords
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