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Adaptive Spatial Resolution in Fast, Efficient, and Stable Analysis of Metallic Lamellar Gratings at Microwave Frequencies

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2 Author(s)
Amin Khavasi ; Electr. Eng. Dept., Sharif Univ. of Technol., Tehran ; Khashayar Mehrany

The technique of adaptive spatial resolution is for the first time applied in fast and efficient Fourier-based analysis of metallic lamellar gratings at microwave frequencies. In as much as the ultrahigh-contrast permittivity profile of these structures is likely to incur numerical instabilities, the continuity condition is heedfully imposed on the transverse electromagnetic fields and an elegant, unconditionally stable matrix-based strategy is proposed to rigorously analyze the microwave transmission of these structures .

Published in:

IEEE Transactions on Antennas and Propagation  (Volume:57 ,  Issue: 4 )