Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/76330
Title: Fast numerical method for computing resonant characteristics of electromagnetic devices based on finite-element method
Authors: Zhang, X
Zhang, X
Fu, WN 
Keywords: Finite-element method (FEM)
Frequency sweeping
Resonant frequency
Time domain
Issue Date: 2017
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE transactions on magnetics, 2017, v. 53, no. 6, 7401004 How to cite?
Journal: IEEE transactions on magnetics 
Abstract: The traditional method to obtain the response of electromagnetic devices over a wide frequency range is to use a frequency sweeping method. However, this method is very time consuming, especially in the time-domain analysis. In order to save the heavy computational time, a novel fast algorithm based on the finite-element method (FEM) to obtain the response under different frequencies is therefore proposed. With this proposed method, the FEM just needs to be solved once under a specific excitation function, and the frequency-domain responses at different frequencies are calculated using a simple integral formula. In this paper, a simple RLC circuit and a planar spiral coil are used to showcase this method. The results indicate that this method can obtain the resonant frequency of the system precisely with significant savings in computation time.
URI: http://hdl.handle.net/10397/76330
ISSN: 0018-9464
EISSN: 1941-0069
DOI: 10.1109/TMAG.2017.2652481
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