An improved characteristic based methods for the time-domain Maxwell Equations

An improved characteristic-based numerical algorithm was presented for solving time-dependent Maxwell Equations. A new term of matrix was added to the original equations which were rewritten in vector form on a Cartesian frame to fully describe the features of complex spatial conditions. The implicit scheme was also drawn into the formulation to separate the six field vectors. In order to better depict wave motion the three forward and backward differential methods are used according to the eigenvalues of the coefficient matrixes. [GRAPHICS] ent of the bunch.