The diffraction of surface waves by a terminated structure in the form of a right-angle bend

A collection of numerical results have been computed from an exact solution for the diffraction of surface waves by a right-angle bend which is reactive on one surface and is perfectly conducting on the other. The power reflection coefficient and the far field pattern are presented graphically for both TM and TE cases. The truncation of the perfectly-conducting face is considered for its approximate effect on the diffraction pattern. The physical significance of these calculations is discussed in terms of its relationship to surface wave antennas. The radiation patterns are also computed by the Kirchhoff approximation and compared with those of the exact analysis.