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Time-domain asymptotic solutions of transient scattered field excited by a thin cylindrically curved conducting surface with edges

By applying the Fourier transform method, we derive the time-domain asymptotic solutions for the transient scattered field including the edge diffracted ray (ED), the edge diffracted and reflected ray (EDR), the whispering-gallery mode radiation (WG), and the edge-surface diffracted ray (SD) which are excited when a plane pulse wave is incident on a thin cylindrically curved conducting surface with edges. The validity of the asymptotic solutions derived here is confirmed by comparing with the reference solution calculated numerically.