Application of Current Source Ports in the Transient Electrothermal Coupling Algorithm

In this paper, an electrothermal coupling algorithm based on the discontinuous Galerkin time domain (DGTD) method and spectral element time domain (SETD) method is proposed. In the electromagnetic solver, current source port excitation is introduced in the form of surface current. The validity of this method is verified by a numerical example, and the validity of the current source port is verified by the comparison with commercial software CST.