Auxiliary differential equation finite-element time-domain method for electromagnetic analysis of dispersive media

摘要

A new technique of Finite-Element Time-Domain (FETD) for electromagnetic analysis of dispersive media is presented. Firstly, the plane wave and matrix equation in dispersive media is obtained. An iteration equation contains J(p) and E is presented. Followed by an introduction of auxiliary differential Equation to the FETD method, a recursive formulation of constitutive for J(p) and E in time domain is given. Then the achievement of Auxiliary Differential Equation Finite-Element Time-Domain (ADE-FETD) is developed through combining the above two equations. Finally, the feasibility of this technique is validated with three-dimension numerical examples.