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A T-matrix approach for EM scattering by a perfectly conducting periodic surface

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3 Author(s)
Lakhtakia, Akhlesh ; The Pennsylvania State University, University Park, PA, USA ; Varadan, Vijay K. ; Varadan, V.V.

The novel use of a Fourier exponential representation of the field induced on a perfectly conducting periodic surface is shown to yield a T-matrix which is numerically stable for deeply corrugated surfaces. Whereas the Rayleigh hypothesis limited the maximum slope of the surface to less than 0.448 in Waterman's original T-matrix scheme [1], our T-matrix is applicable even when the maximum slopes are of the order of 1.5.

Published in:

Proceedings of the IEEE  (Volume:73 ,  Issue: 7 )