Mixed discretization of the time-domain MFIE at low frequencies

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Ulku, H. Arda, Bogaert, Ignace, Cools, Kristof, Andriulli, Francesco P. and Bagci, Hakan (2017) Mixed discretization of the time-domain MFIE at low frequencies. IEEE Antennas and Wireless Propagation Letters, 16 . pp. 1565-1568. ISSN 1548-5757

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Abstract

Solution of the magnetic field integral equation, which is obtained by the classical marching-on-in-time (MOT) scheme, becomes inaccurate when the time-step is large, i.e., under low-frequency excitation. It is shown here that the inaccuracy stems from the classical MOT scheme's failure to predict the correct scaling of the current's Helmholtz components for large time-steps. A recently proposed mixed discretization strategy is used to alleviate the inaccuracy problem by restoring the correct scaling of the current's Helmholtz components under low-frequency excitation.

Item Type: Article
RIS ID: https://nottingham-repository.worktribe.com/output/841034
Additional Information: (c) 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works
Keywords: Buffa–Christiansen (BC) functions, low-frequency analysis, magnetic field integral equation (MFIE), marching-on-in-time (MOT) method, mixed discretization, transient analysis
Schools/Departments: University of Nottingham, UK > Faculty of Engineering > Department of Electrical and Electronic Engineering
Identification Number: 10.1109/LAWP.2017.2651045
Depositing User: Eprints, Support
Date Deposited: 14 Sep 2017 11:10
Last Modified: 04 May 2020 18:31
URI: https://eprints.nottingham.ac.uk/id/eprint/46291

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