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By extending a frequency domain (FD) uniform asymptotic solution (FD-UAS), we develop a time-domain (TD) asymptotic-numerical solution (TD-ANS) for a transient scattered field when a modulated ultra-wideband (UWB) pulse wave is incident on the convex portion of a cylindrically curved conducting open sheet with two straight edges. The TD-ANS is represented by a combination of the transient scattered...
In this paper, by extending the analysis method of Idemen and Felsen, the uniform asymptotic solution is derived for the WG mode radiation field applicable uniformly in the transition region near the geometrical boundaries produced by the incident modal ray on the edge of the curved surface comprising the WG mode. The uniform solution is represented by the summation of the geometrical ray solution...
In this research, the time-domain uniform asymptotic solution for the scattered field by a cylindrically curved conducting open surface was derived. The time-domain uniform asymptotic solution consists of the edge diffracted rays, the surface diffracted rays, the geometrical rays, the whispering gallery (WG) mode radiation field, and the combination of these waves. Comparisons of the time-domain uniform...
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