Open AccessNumerical simulation of electromagnetic radiation using high-order discontinuous galerkin time domain method
Author(s) -
Pranowo Pranowo,
Djoko Budiyanto Setyohadi
Publication year - 2019
Publication title -
international journal of electrical and computer engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.277
H-Index - 22
ISSN - 2088-8708
DOI - 10.11591/ijece.v9i2.pp1267-1274
Subject(s) - discontinuous galerkin method , perfectly matched layer , finite difference time domain method , discretization , electromagnetic field , maxwell's equations , physics , finite element method , electromagnetic radiation , time domain , galerkin method , boundary element method , computer simulation , computer science , mathematical analysis , mathematics , classical mechanics , optics , mechanics , quantum mechanics , computer vision , thermodynamics
In this paper, we propose the simulation of 2-dimensional electromagnetic wave radiation using high-order discontinuous Galerkin time domain method to solve Maxwell's equations. The domains are discretized into unstructured straight-sided triangle elements that allow enhanced flexibility when dealing with complex geometries. The electric and magnetic fields are expanded into a high-order polynomial spectral approximation over each triangle element. The field conservation between the elements is enforced using central difference flux calculation at element interfaces. Perfectly matched layer (PML) boundary condition is used to absorb the waves that leave the domain. The comparison of numerical calculations is performed by the graphical displays and numerical data of radiation phenomenon and presented particularly with the results of the FDTD method. Finally, our simulations show that the proposed method can handle simulation of electromagnetic radiation with complex geometries easily.