Electromagnetic Scattering Analysis using a Hybridizable Discontinuous Galerkin-Boundary Integral Method

Ran Zhao, Ming Dong, Liang Chen, Hakan Bagci, Jun Hu

Research output: Chapter in Book/Report/Conference proceedingConference contribution


A method that couples the hybridizable discontin-uous Galerkin (HDG) and boundary-integral (BI) equation is proposed to efficiently and accurately analyze electromagnetic scattering from composite objects. The coupling between the HDG and the BI equations is realized using the numerical flux operating on the equivalent current and the global unknown of the HDG. A “hybrid” scheme, which uses the multilevel fast multipole method and a direct sparse matrix solver, is developed to efficiently solve the matrix system resulting from the discretization of the coupled HDG and BI equations. The numerical results demonstrate the accuracy, the efficiency, and the applicability of the proposed HDG-BI solver.
Original languageEnglish (US)
Title of host publication2023 International Applied Computational Electromagnetics Society Symposium (ACES)
StatePublished - May 9 2023

Bibliographical note

KAUST Repository Item: Exported on 2023-05-23
Acknowledged KAUST grant number(s): 2019-CRG8-4056
Acknowledgements: This work was supported in part by KAUST OSR under Award 2019-CRG8-4056 and in part by NSFC under Grant 62271002.


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