Pulsed Beam Diffraction by a Perfectly Conducting Wedge: Exact Solution

Reuven Ianconescu, Ehud Heyman

Research output: Contribution to journalArticlepeer-review

Abstract

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). We 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 pulselength): 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. Further physical insight is provided by the local scattering models, which are derived in a subsequent publication.

Original languageEnglish
Pages (from-to)1377-1385
Number of pages9
JournalIEEE Transactions on Antennas and Propagation
Volume42
Issue number10
DOIs
StatePublished - Oct 1994

Funding

FundersFunder number
Tel-Aviv69978, 9404952
Air Force Systems CommandF19628-91-C-0113
United States-Israel Binational Science Foundation88-00204
Tel Aviv University

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