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High-frequency plane wave diffraction by an ideal strip at oblique incidence: Parabolic equation approach

  • Classical Problems of Linear Acoustics and Wave Theory
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Abstract

The problem of diffraction of a high-frequency plane wave by a strip with ideal boundary conditions is considered for the case of oblique incidence. The study is based on the parabolic approximation, which is used to construct an expression for the directional pattern in terms of single quadratures. A similar result is obtained using the embedding formula. It is shown that the derived expression approximates the classical Michaeli result. A proof of the optical theorem for the parabolic problem is presented.

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Authors and Affiliations

  1. Faculty of Physics, Moscow State University, Moscow, 119991, Russia

    A. I. Korol’kov & A. V. Shanin

Authors
  1. A. I. Korol’kov
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  2. A. V. Shanin
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Correspondence to A. I. Korol’kov.

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Original Russian Text © A.I. Korol’kov, A.V. Shanin, 2016, published in Akusticheskii Zhurnal, 2016, Vol. 62, No. 4, pp. 399–407.

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Korol’kov, A.I., Shanin, A.V. High-frequency plane wave diffraction by an ideal strip at oblique incidence: Parabolic equation approach. Acoust. Phys. 62, 405–413 (2016). https://doi.org/10.1134/S1063771016040096

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  • DOI: https://doi.org/10.1134/S1063771016040096

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