Uniform Physical Optics Diffraction Coefficients for Impedance Surfaces and Apertures

Masayuki OODO; Makoto ANDO

Uniform Physical Optics Diffraction Coefficients for Impedance Surfaces and Apertures

Masayuki OODO, Makoto ANDO

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The key concept of Physical Optics (PO), originally developed for a perfectly electric conductor (PEC), consists in that the high frequency fields on the scatterer surface are approximated by those which would exist on the infinite flat surface tangent to the scatterer. The scattered fields at arbitrary observation points are then calculated by integrating these fields on the scatterer. This general concept can be extended to arbitrary impedance surfaces. The asymptotic evaluation of this surface integration in terms of diffraction coefficients gives us the fields in analytical forms. In this paper, uniform PO diffraction coefficients for the impedance surfaces are presented and their high accuracy is verified numerically. These coefficients are providing us with the tool for the mechanism extraction of various high frequency methods such as aperture field integration method and Kirchhoff's method.

Publication: IEICE TRANSACTIONS on Electronics Vol.E80-C No.7 pp.1056-1062

Publication Date: 1997/07/25

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Category: Electromagnetic Theory

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Masayuki OODO, Makoto ANDO, "Uniform Physical Optics Diffraction Coefficients for Impedance Surfaces and Apertures" in IEICE TRANSACTIONS on Electronics, vol. E80-C, no. 7, pp. 1056-1062, July 1997, doi: .
Abstract: The key concept of Physical Optics (PO), originally developed for a perfectly electric conductor (PEC), consists in that the high frequency fields on the scatterer surface are approximated by those which would exist on the infinite flat surface tangent to the scatterer. The scattered fields at arbitrary observation points are then calculated by integrating these fields on the scatterer. This general concept can be extended to arbitrary impedance surfaces. The asymptotic evaluation of this surface integration in terms of diffraction coefficients gives us the fields in analytical forms. In this paper, uniform PO diffraction coefficients for the impedance surfaces are presented and their high accuracy is verified numerically. These coefficients are providing us with the tool for the mechanism extraction of various high frequency methods such as aperture field integration method and Kirchhoff's method.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e80-c_7_1056/_p

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@ARTICLE{e80-c_7_1056,
author={Masayuki OODO, Makoto ANDO, },
journal={IEICE TRANSACTIONS on Electronics},
title={Uniform Physical Optics Diffraction Coefficients for Impedance Surfaces and Apertures},
year={1997},
volume={E80-C},
number={7},
pages={1056-1062},
abstract={The key concept of Physical Optics (PO), originally developed for a perfectly electric conductor (PEC), consists in that the high frequency fields on the scatterer surface are approximated by those which would exist on the infinite flat surface tangent to the scatterer. The scattered fields at arbitrary observation points are then calculated by integrating these fields on the scatterer. This general concept can be extended to arbitrary impedance surfaces. The asymptotic evaluation of this surface integration in terms of diffraction coefficients gives us the fields in analytical forms. In this paper, uniform PO diffraction coefficients for the impedance surfaces are presented and their high accuracy is verified numerically. These coefficients are providing us with the tool for the mechanism extraction of various high frequency methods such as aperture field integration method and Kirchhoff's method.},
keywords={},
doi={},
ISSN={},
month={July},}

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TY - JOUR
TI - Uniform Physical Optics Diffraction Coefficients for Impedance Surfaces and Apertures
T2 - IEICE TRANSACTIONS on Electronics
SP - 1056
EP - 1062
AU - Masayuki OODO
AU - Makoto ANDO
PY - 1997
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E80-C
IS - 7
JA - IEICE TRANSACTIONS on Electronics
Y1 - July 1997
AB - The key concept of Physical Optics (PO), originally developed for a perfectly electric conductor (PEC), consists in that the high frequency fields on the scatterer surface are approximated by those which would exist on the infinite flat surface tangent to the scatterer. The scattered fields at arbitrary observation points are then calculated by integrating these fields on the scatterer. This general concept can be extended to arbitrary impedance surfaces. The asymptotic evaluation of this surface integration in terms of diffraction coefficients gives us the fields in analytical forms. In this paper, uniform PO diffraction coefficients for the impedance surfaces are presented and their high accuracy is verified numerically. These coefficients are providing us with the tool for the mechanism extraction of various high frequency methods such as aperture field integration method and Kirchhoff's method.
ER -