Discontinuous Galerkin Time Domain Method for Coupled Field-circuit Problems in Periodic Structures

In this paper, the discontinuous Galerkin time-domain method (DGTD) is proposed to analyze the problem of diode-loaded periodic structures by employing the equivalent circuit model. This structure can be used as an energy-selective surfaces (ESSs) to protect electronic equipment from high power microwave interference. The proposed method is able to couple the electromagnetic fields with the circuits through numerical fluxes efficiently. Numerical results are in great agreement with the ones from the commercial software, which verifies the accuracy of the proposed method.