Diffraction at Rounded Wedges: MoM Modeling of PTD Fringe Waves
关键词:
Fringe wave, hard boundary condition, method of moments, non-uniform currents, physical optics, physical theory of diffraction, rounded wedge, soft boundary condition, uniform currents摘要
The paper examines diffraction at rounded wedges with perfectly conducting faces. This topic was a subject of many publications which investigated mainly the total diffracted waves. In the present paper, we calculate specifically their fringe components to illustrate their sensitivity to the edge curvature. Such fringe waves provide substantial contributions to the scattered field in certain directions and represent a key element in extension of the physical theory of diffraction (PTD) for objects with rounded edges.
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