An explicit marching on-in-time (MOT) scheme for solving the mixed discretized time domain magnetic field integral equation is presented. The proposed scheme uses Rao-Wilton-Glisson and Buffa-Christiansen functions as spatial basis and testing functions (mixed spatial discretization) and a PE(CE)m type predictor-corrector scheme for time marching. Under low frequency excitation (i.e., when the time step is large), mixed discretization scheme ensures the accuracy of the solution while the explicit scheme ensures the efficiency of the MOT.
