Abstract-In this paper, finite difference frequency domain (FDFD) formulation has been developed for the analysis of electromagnetic wave interaction with chiral materials, and the validity of the formulation for three dimensional scattering problems has been confirmed by comparing the numerical results to exact or other numerical solutions. The influences of the chirality on the scattered field components are investigated. Numerical results for bistatic radar cross section (RCS) are presented and compared to reference solutions and it is found that the proposed FDFD method shows good agreement. It is realized that the presented method is relatively easy to program and can be applied to a wide variety of problems of complex and composite structures efficiently.

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