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An accurate absorbing boundary condition (ABC) is presented for three-dimensional time-domain finite-element (FEM-TD) analysis of infinitely periodic structures. The proposed ABC serves to truncate the computational domain in the nonperiodic directions and it is highly effective to absorb both the fundamental and the higher order Floquet modes. The formulation is applicable both for scattering and...
This article presents and validates a new truncation condition that is capable of absorbing all higher-order modes. This new truncation condition that we refer to as a Floquet ABC involves infinite series that need to be truncated for practical use, and a few terms in the infinite series are often sufficient to obtain very accurate results
This paper summarizes our recent advances in the development of the TDFEM for computational electromagnetics. Because of its unique advantages, the TDFEM is expected to have a great potential in both engineering research and commercial applications
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