Recent advances in TDFIT algorithm and its applications

In the past three years, we have concentrated on developing a time-domain finite-integration theorem (TDFIT) and applying it in practical applications. In the development of TDFIT theory, a conformal technique has been implemented to improve its accuracy. To solve complex problems much smarter, we have proposed an adaptive steady-state criterion (SSC) and a flexible Smatrix scheme. In addition, we are developing an Mpi-Openmp-Gpu (MOG) hybrid parallel technique to further accelerate TDFIT. In the aspect of application, a TDFIT-ANN (Artificial Neural Network) hybrid method is used to efficiently optimize a broadband antennas-radome system. To analyze the multipactor, we presented a TDFIT-PIC (Particle-In-Cell) hybrid algorithm. Besides, a multi-physics solution based on TDFIT is being developed to investigate the passive intermodulation.