A fast higher-order time-domain finite element-boundary integral method for 3-D electromagnetic scattering analysis

Dan Jiao; A. Arif Ergin; Balasubramaniam Shanker; Eric Michielssen; Jian Ming Jin

doi:10.1109/TAP.2002.801375

A fast higher-order time-domain finite element-boundary integral method for 3-D electromagnetic scattering analysis

Dan Jiao, A. Arif Ergin, Balasubramaniam Shanker, Eric Michielssen, Jian Ming Jin

Research output: Contribution to journal › Article › peer-review

Abstract

A novel hybrid time-domain finite element-boundary integral method for analyzing three-dimensional (3-D) electromagnetic scattering phenomena is presented. The method couples finite element and boundary integral field representations in a way that results in a sparse system matrix and solutions that are devoid of spurious modes. To accurately represent the unknown fields, the scheme employs higher-order vector basis functions defined on curvilinear tetrahedral elements. To handle problems involving electrically large objects, the multilevel plane-wave time-domain algorithm is used to accelerate the evaluation of the boundary integrals. Numerical results demonstrate the accuracy and versatility of the proposed scheme.

Original language	English (US)
Pages (from-to)	1192-1202
Number of pages	11
Journal	IEEE Transactions on Antennas and Propagation
Volume	50
Issue number	9
DOIs	https://doi.org/10.1109/TAP.2002.801375
State	Published - Sep 2002

Keywords

Electromagnetic scattering
Finite-element method
Higher-order method
Transient analysis

ASJC Scopus subject areas

Electrical and Electronic Engineering

Online availability

10.1109/TAP.2002.801375

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title = "A fast higher-order time-domain finite element-boundary integral method for 3-D electromagnetic scattering analysis",

abstract = "A novel hybrid time-domain finite element-boundary integral method for analyzing three-dimensional (3-D) electromagnetic scattering phenomena is presented. The method couples finite element and boundary integral field representations in a way that results in a sparse system matrix and solutions that are devoid of spurious modes. To accurately represent the unknown fields, the scheme employs higher-order vector basis functions defined on curvilinear tetrahedral elements. To handle problems involving electrically large objects, the multilevel plane-wave time-domain algorithm is used to accelerate the evaluation of the boundary integrals. Numerical results demonstrate the accuracy and versatility of the proposed scheme.",

keywords = "Electromagnetic scattering, Finite-element method, Higher-order method, Transient analysis",

author = "Dan Jiao and Ergin, {A. Arif} and Balasubramaniam Shanker and Eric Michielssen and Jin, {Jian Ming}",

note = "Funding Information: Manuscript received November 20, 2000; revised August 6, 2001. This work was supported by AFOSR via the MURI program under Contract F49620-96-1-0025.",

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AU - Jiao, Dan

AU - Ergin, A. Arif

AU - Shanker, Balasubramaniam

AU - Michielssen, Eric

AU - Jin, Jian Ming

N1 - Funding Information: Manuscript received November 20, 2000; revised August 6, 2001. This work was supported by AFOSR via the MURI program under Contract F49620-96-1-0025.

PY - 2002/9

Y1 - 2002/9

N2 - A novel hybrid time-domain finite element-boundary integral method for analyzing three-dimensional (3-D) electromagnetic scattering phenomena is presented. The method couples finite element and boundary integral field representations in a way that results in a sparse system matrix and solutions that are devoid of spurious modes. To accurately represent the unknown fields, the scheme employs higher-order vector basis functions defined on curvilinear tetrahedral elements. To handle problems involving electrically large objects, the multilevel plane-wave time-domain algorithm is used to accelerate the evaluation of the boundary integrals. Numerical results demonstrate the accuracy and versatility of the proposed scheme.

AB - A novel hybrid time-domain finite element-boundary integral method for analyzing three-dimensional (3-D) electromagnetic scattering phenomena is presented. The method couples finite element and boundary integral field representations in a way that results in a sparse system matrix and solutions that are devoid of spurious modes. To accurately represent the unknown fields, the scheme employs higher-order vector basis functions defined on curvilinear tetrahedral elements. To handle problems involving electrically large objects, the multilevel plane-wave time-domain algorithm is used to accelerate the evaluation of the boundary integrals. Numerical results demonstrate the accuracy and versatility of the proposed scheme.

KW - Electromagnetic scattering

KW - Finite-element method

KW - Higher-order method

KW - Transient analysis

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A fast higher-order time-domain finite element-boundary integral method for 3-D electromagnetic scattering analysis

Abstract

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