Abstract
The electromagnetic dual-primal finite element tearing and interconnecting (FETI-DPEM) method, originally equipped with the first-order absorbing boundary condition (ABC), is combined with the second-order ABC implemented using auxiliary variables to enhance the accuracy of electromagnetic scattering and radiation simulations. When the second-order ABC surface is partitioned by domain decomposition, it is necessary to enforce an extra continuity condition on the auxiliary variables representing a continuous surface divergence for the electric field at the junctions of the subdomain interfaces and the truncation surface. A simple approach to enforce such a continuity is proposed without altering the overall framework of the FETI-DPEM method. Numerical examples are provided to demonstrate the accuracy improvement due to the use of the second-order ABC.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2765-2769 |
| Number of pages | 5 |
| Journal | IEEE Transactions on Antennas and Propagation |
| Volume | 56 |
| Issue number | 8 II |
| DOIs | |
| State | Published - 2008 |
Keywords
- Domain decomposition method (DDM)
- Finite element method (FEM)
- Finite element tearing and interconnecting (FETI)
- Second-order absorbing boundary condition
ASJC Scopus subject areas
- Electrical and Electronic Engineering