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Pulsed beam diffraction by a perfectly conducting wedge: exact solution

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2 Author(s)
Ianconescu, R. ; Dept. of Electr. Eng., Tel Aviv Univ., Israel ; Heyman, E.

The new canonical problem of scattering of a collimated pulsed beam (PB) by a perfectly conducting wedge is analyzed and solved exactly. The incident PB is modeled by the so called complex-source PB (CSPB). The authors derive an exact closed-form solution for the scattered field and demonstrate, via extensive numerical examples, the local scattering phenomena as a function of the PB parameters (direction, distance from the edge, spatial collimation, and pulse length): if the PB hits near the edge it generates a toroidal diffracted wavepacket that propagates along Keller's cone as well as transitional shadow boundaries effects. These diffraction phenomena diminish as the distance of the impinging wavepacket from the edge grows

Published in:

Antennas and Propagation, IEEE Transactions on  (Volume:42 ,  Issue: 10 )

Date of Publication:

Oct 1994

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