论文信息 - Beyond the Kirchhoff approximation II electromagnetic scattering

Beyond the Kirchhoff approximation II electromagnetic scattering

In a previous paper the momentum transfer expansion was introduced for scalar wave scattering. It was shown that, using this expansion, one could obtain wavelength dependent curvature corrections to the Kirchhoff approximation. In this paper we extend the momentum transfer perturbation expansion to electromagnetic waves. Curvature corrections to the surface current are obtained. Using these results, the specular field and the backscatter cross section are calculated.

Ernesto Rodriguez

[1] T. Hagfors,et al. Relationship of geometric optics and autocorrelation approaches to the analysis of lunar and planetary radar , 1966 .

[2] P. J. Lynch. Curvature Corrections to Rough‐Surface Scattering at High Frequencies , 1970 .

[3] G. Leonard Tyler,et al. Wavelength dependence in radio-wave scattering and specular-point theory , 1976 .

[4] A. Maradudin,et al. Multiple Scattering of Waves from Random Rough Surfaces , 1980 .

[5] Akira Ishimaru,et al. Investigation of a surface field phase perturbation technique for scattering from rough surfaces , 1985 .

[6] Manuel Nieto-Vesperinas,et al. A Detailed Study of the Scattering of Scalar Waves from Random Rough Surfaces , 1981 .

[7] A. Ishimaru,et al. Application of the phase-perturbation technique to randomly rough surfaces , 1985 .

[8] E. Rodríguez,et al. Beyond the Kirchhoff approximation , 1989 .

[9] Suzanne T. McDaniel. Diffractive corrections to the high‐frequency Kirchhoff approximation , 1986 .

[10] M. Nieto-Vesperinas,et al. Depolarization of electromagnetic waves scattered from slightly rough random surfaces: a study by means of the extinction theorem , 1982 .

[11] P. Waterman,et al. Scattering by periodic surfaces , 1975 .