Ray Mode Coupling Analysis of Plane Wave Scattering by a Trough

Hiroshi SHIRAI; Kazuhiro HIRAYAMA

Ray Mode Coupling Analysis of Plane Wave Scattering by a Trough

Hiroshi SHIRAI, Kazuhiro HIRAYAMA

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Electromagnetic plane wave scattering by a wide trough on the ground has been analyzed by high frequency asymptotic techniques based on Geometrical Theory of Diffraction. Field in the trough region has been formulated in terms of parallel plane waveguide modes, whose excitation (coupling) coefficients are obtained by ray-mode conversion techniques. Numerical calculation has been done extensively and thus obtained results are then compared with those by other methods. Good agreements have been observed except for oblique incidence case. It is found that first and secondary modal re-radiation fields from the indented trough region play an important role for scattering far field, and primary edge diffracted field contributes mainly to reflection boundary direction.

Publication: IEICE TRANSACTIONS on Communications Vol.E76-B No.12 pp.1558-1563

Publication Date: 1993/12/25

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Type of Manuscript: Special Section PAPER (Special Issue on 1992 Internatioal Symposium on Antennas and Propagation)

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Hiroshi SHIRAI, Kazuhiro HIRAYAMA, "Ray Mode Coupling Analysis of Plane Wave Scattering by a Trough" in IEICE TRANSACTIONS on Communications, vol. E76-B, no. 12, pp. 1558-1563, December 1993, doi: .
Abstract: Electromagnetic plane wave scattering by a wide trough on the ground has been analyzed by high frequency asymptotic techniques based on Geometrical Theory of Diffraction. Field in the trough region has been formulated in terms of parallel plane waveguide modes, whose excitation (coupling) coefficients are obtained by ray-mode conversion techniques. Numerical calculation has been done extensively and thus obtained results are then compared with those by other methods. Good agreements have been observed except for oblique incidence case. It is found that first and secondary modal re-radiation fields from the indented trough region play an important role for scattering far field, and primary edge diffracted field contributes mainly to reflection boundary direction.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e76-b_12_1558/_p

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@ARTICLE{e76-b_12_1558,
author={Hiroshi SHIRAI, Kazuhiro HIRAYAMA, },
journal={IEICE TRANSACTIONS on Communications},
title={Ray Mode Coupling Analysis of Plane Wave Scattering by a Trough},
year={1993},
volume={E76-B},
number={12},
pages={1558-1563},
abstract={Electromagnetic plane wave scattering by a wide trough on the ground has been analyzed by high frequency asymptotic techniques based on Geometrical Theory of Diffraction. Field in the trough region has been formulated in terms of parallel plane waveguide modes, whose excitation (coupling) coefficients are obtained by ray-mode conversion techniques. Numerical calculation has been done extensively and thus obtained results are then compared with those by other methods. Good agreements have been observed except for oblique incidence case. It is found that first and secondary modal re-radiation fields from the indented trough region play an important role for scattering far field, and primary edge diffracted field contributes mainly to reflection boundary direction.},
keywords={},
doi={},
ISSN={},
month={December},}

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TY - JOUR
TI - Ray Mode Coupling Analysis of Plane Wave Scattering by a Trough
T2 - IEICE TRANSACTIONS on Communications
SP - 1558
EP - 1563
AU - Hiroshi SHIRAI
AU - Kazuhiro HIRAYAMA
PY - 1993
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E76-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 1993
AB - Electromagnetic plane wave scattering by a wide trough on the ground has been analyzed by high frequency asymptotic techniques based on Geometrical Theory of Diffraction. Field in the trough region has been formulated in terms of parallel plane waveguide modes, whose excitation (coupling) coefficients are obtained by ray-mode conversion techniques. Numerical calculation has been done extensively and thus obtained results are then compared with those by other methods. Good agreements have been observed except for oblique incidence case. It is found that first and secondary modal re-radiation fields from the indented trough region play an important role for scattering far field, and primary edge diffracted field contributes mainly to reflection boundary direction.
ER -