FRACTAL SURFACE SCATTERING : A GENERALIZED RAYLEIGH SOLUTION

We consider the scattering of electromagnetic waves from perfectly conducting fractal surfaces. The surface is modeled by a multiscaled bandlimited continuous fractal function. We analytically develop a generalized Rayleigh solution for electromagnetic wave scattering from such fractal surfaces. After an examination of the convergence of the Rayleigh systems, we numerically calculate the coupling strengths and relate the angular scattering energy distribution to the fractal descriptors of the surface. We find that the slope of the coupling strengths as a function of their corresponding spatial frequencies on a logarithmic scale depends monotonically on the fractal dimension of the scattering surface.

[1]  D. Jaggard,et al.  Diffraction by band-limited fractal screens , 1987 .

[2]  Dwight L. Jaggard,et al.  Electromagnetic wave propagation in almost periodic media , 1979 .

[3]  E Jakeman,et al.  Scattering by a corrugated random surface with fractal slope , 1982 .

[4]  Dwight L. Jaggard,et al.  Optical beam propagation in a band-limited fractal medium , 1988 .

[5]  Nakamura Computer simulation for the roughness and fractal properties of film surfaces. , 1989, Physical review. B, Condensed matter.

[6]  Edmund Taylor Whittaker,et al.  A Course of Modern Analysis , 2021 .

[7]  H. N. Kritikos,et al.  Recent Advances in Electromagnetic Theory , 2011 .

[8]  D. L. Jordan,et al.  Experimental measurements of non-Gaussian scattering by a fractal diffuser , 1983 .

[9]  R. Collin Field theory of guided waves , 1960 .

[10]  D. L. Jaggard,et al.  Scattering from Fractally Fluted Cylinders , 1990 .

[11]  Dwight L. Jaggard,et al.  Scattering from fractally corrugated surfaces , 1990 .

[12]  P. Beckmann,et al.  The scattering of electromagnetic waves from rough surfaces , 1963 .

[13]  M. Berry,et al.  On the Weierstrass-Mandelbrot fractal function , 1980, Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences.

[14]  D. Jaggard,et al.  Scattering from bandlimited fractal fibers , 1989 .

[15]  Roger Petit,et al.  Electromagnetic theory of gratings , 1980 .

[16]  The Reflection of electromagnetic waves from almost periodic structures , 1979 .