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Time-domain analysis of periodic structures at oblique incidence: orthogonal and nonorthogonal FDTD implementations

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5 Author(s)
J. A. Roden ; Signature Technol. Lab., Georgia Tech. Res. Inst., Atlanta, GA, USA ; S. D. Gedney ; M. P. Kesler ; J. G. Maloney
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A novel implementation of periodic boundary conditions incorporated into the finite-difference time-domain (FDTD) technique in both orthogonal and nonorthogonal grids is presented in this paper. The method applied is a field-splitting approach to the discretization of the Floquet-transformed Maxwell equations. As a result, the computational burden is reduced and the stability criterion is relaxed. The results of the two methods are compared to experimental data

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IEEE Transactions on Microwave Theory and Techniques  (Volume:46 ,  Issue: 4 )