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Scattering from a perfectly conducting surface with a sinusoidal height profile: TE polarization

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2 Author(s)
K. Zaki ; Univ. of Maryland, College Park, MD, USA ; A. Neureuther

A method for the analysis of scattering from periodic structures based on the numerical solution of the integral equations is further developed. Using periodicity (Floquet's theorem), the range of the integral equations is reduced to a single period where the kernels are the Green's functions for periodic arrays. The numerical solution of the integral equations is obtained using the method of moments. Efficient numerical methods for the computation of the periodic Green's functions which allows their rapid evaluation with good accuracy are reported. A new treatment of the singularities which includes the effect of the surface curvature is given. Numerical results for the transverse electric scattering from a conducting surface with a sinusoidal height profile are presented, and several interesting physical phenomena are explored including Brewster angle effects and diffraction grating anomalies.

Published in:

IEEE Transactions on Antennas and Propagation  (Volume:19 ,  Issue: 2 )