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p-Refinement for large-domain waveguide structures analyzed by FEM-MM technique
2014 IEEE Antennas and Propagation Society International Symposium (APSURSI)
Coupling of a mode matching (MM) method with a higher order large-domain finite element method (FEM) is presented in analysis of three-dimensional waveguide structures with discontinuities. The new FEM-MM technique enables very effective higher order hexahedral meshes constructed from a very small number of large curved conformal finite elements (large domains) and p-refined high-order field expansions. This results in solutions with minimal total numbers of unknowns. I.doi:10.1109/aps.2014.6905453 fatcat:2ufrz5jx6rgjbdri4fl3pthfgm