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Unconditionally Stable FDTD Method Based on LOD Scheme for Analysis of 2-D Periodic Structures

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4 Author(s)
Jian-bao Wang ; Nat. Key Lab. on Electromagn. Environ. Effects & Electro-Opt. Eng., PLA Univ. of Sci. & Technol., Nanjing, China ; Bi-Hua Zhou ; Shi, Lihua ; Bin Chen

For modeling periodic structures at oblique incidence, an unconditionally stable finite-difference time-domain technique is presented by applying the locally one-dimensional (LOD) scheme to the field transformation technique. By splitting the space operator matrix in an appropriate way, the transformed Maxwell's equations can be subdivided into two sub-steps for an efficient implementation. The accuracy and efficiency of the proposed method are verified by comparing with the results of the reference [4] and the split-field method respectively.

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Antennas and Propagation, IEEE Transactions on  (Volume:60 ,  Issue: 8 )