Abstract：Novel finite-difference approximations of Mur s conditions are presented in frequency-domain. Combined with the FD-FD equations deduced, the new conditions are convenient and effective to solve EM problems of inhomogeneous anisotropic media. By use of the compressed storage sparse matrix technique and iteration algorithm, the computer memories demanded are decreased and the CPU time is shortened compared with those obtained by moment method (MM). RCS of cylinders and rectangular posts are given with several kinds of media. The results of cylinder are in good agreement with those of MM.
1996, Vol. 18 
