An impedance boundary condition EFIE that is low-frequency and refinement stable

Dely, Alexandre, Andriulli, Francesco P. and Cools, Kristof (2017) An impedance boundary condition EFIE that is low-frequency and refinement stable. IEEE Transactions on Antennas and Propagation, 65 (3). pp. 1259-1266. ISSN 0018-926X

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A discretization of the impedance boundary condition electric field integral equation (IBC-EFIE) is introduced that: 1) yields the correct solution at arbitrarily small frequencies and 2) requires for its solution a number of matrix vector products bounded as the frequency tends to zero and as the mesh density increases. The low frequency stabilization is based on a projector-based discrete Helmholtz splitting, rescaling, and recombination that depends on the low frequency behavior of both the EFIE operator and the surface impedance condition. The dense mesh stabilization is a modification of the perfect electric conductor operator preconditioning approach taking into account the effect on the singular value spectrum of the IBC term.

Item Type: Article
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Keywords: Scattering, Impedance Boundary Conditions, Preconditioning, Low Frequency, Boundary Element Method
Schools/Departments: University of Nottingham, UK > Faculty of Engineering > Department of Electrical and Electronic Engineering
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Depositing User: Eprints, Support
Date Deposited: 14 Sep 2017 13:06
Last Modified: 04 May 2020 18:31

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