On the Surface Wave Diffraction by a Step

Abstract

A modified procedure of the Wiener-Hopf technique is developed, and used to determine the transmitted and reflected fields of a surface wave which is normally incident upon the junction of two semi-infinite planes joined together by a step of height a.Both planes have normalized reactance X , and the step surface has X0 .Reduction of the transmission loss at the step by increasing X0 is shown to be possible. The relation between edge condition and uniqueness of solution along with field behaviors at the corners of the step are fully investigated. A comparison between the present procedure and the residue cancellation is made.