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Spectral-domain analysis of circular patch frequency selective surfaces

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3 Author(s)
Mittra, R. ; Univ. of Illinois, Urbana, IL USA ; Hall, R.C. ; Chich-Hsing Tsao

A computationally efficient method is presented for analyzing the scattering from frequency selective surfaces (FSS) comprised of circular metal patches. The formulation is carried out in the spectral domain where the convolution form of the integral equation for the induced current reduces to an algebraic one and the spectral-Galerkin technique is used to solve the resulting equation. Entire-domain basis functions that satisfy the edge condition are introduced to expand the unknown induced current on the metal patches. Calculated results using this procedure show good agreement with data reported by other authors.

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Antennas and Propagation, IEEE Transactions on  (Volume:32 ,  Issue: 5 )