A Discontinuous Galerkin Surface Integral Solution for Scattering from Homogeneous Objects with High Dielectric Constant

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Tutkijat

Organisaatiot

  • Beijing Institute of Technology

Kuvaus

The discontinuous Galerkin (DG) method for homogeneous bodies has been studied and shown to be an efficient tool for multiscale homogeneous bodies. However, the slow convergence of DG with the block diagonal preconditioner (BDP) is still observed in solving high contrast homogeneous bodies. An efficient preconditioning approach is designed for the DG method in this communication by using the sparsing approach on the near-field matrix of the whole region. The iteration convergence speed of the DG method is improved while the computing resources for constructing the preconditioner are effectively reduced. Numerical experiments demonstrate the capability of the presented DG method for multiscale homogeneous bodies, especially for those with a high dielectric constant.

Yksityiskohdat

AlkuperäiskieliEnglanti
Artikkeli8876841
Sivut598-603
Sivumäärä6
JulkaisuIEEE Transactions on Antennas and Propagation
Vuosikerta68
Numero1
TilaJulkaistu - 1 tammikuuta 2020
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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