Modified Finite-Difference Time-Domain Method for Hertzian Dipole Source under Low-Frequency Band

In this paper, a modified finite-difference time-domain (FDTD) method is proposed for the rapid analysis of a Hertzian dipole source in the low-frequency band. The FDTD technique is one of the most widely used methods for interpreting high-resolution problems such as those associated with the human...

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Autores principales:	Minhyuk Kim, SangWook Park
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	finite-difference time-domain method quasi-static analysis wireless power transfer dosimetry Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/c7b82c8fea654a3fa98d31b3d6abef3e
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spelling	oai:doaj.org-article:c7b82c8fea654a3fa98d31b3d6abef3e2021-11-25T17:24:04ZModified Finite-Difference Time-Domain Method for Hertzian Dipole Source under Low-Frequency Band10.3390/electronics102227332079-9292https://doaj.org/article/c7b82c8fea654a3fa98d31b3d6abef3e2021-11-01T00:00:00Zhttps://www.mdpi.com/2079-9292/10/22/2733https://doaj.org/toc/2079-9292In this paper, a modified finite-difference time-domain (FDTD) method is proposed for the rapid analysis of a Hertzian dipole source in the low-frequency band. The FDTD technique is one of the most widely used methods for interpreting high-resolution problems such as those associated with the human body. However, this method has been difficult to use in the low-frequency band as the required number of iterations has increased significantly in such cases. To avoid this problem, FDTD techniques using quasi-static assumptions in low-frequency bands were used. However, this method was applied only to plane wave excitation, making it difficult to apply to near-field problems. Therefore, a modified approach is proposed, involving the application of the FDTD technique with a quasi-static approximation to an electric and magnetic dipole problem. The results when using the proposed method are in good agreement with those from a theoretical solution. An example of comparison with the standard FDTD method is shown for illustrating the proposed method’s performance.Minhyuk KimSangWook ParkMDPI AGarticlefinite-difference time-domain methodquasi-static analysiswireless power transferdosimetryElectronicsTK7800-8360ENElectronics, Vol 10, Iss 2733, p 2733 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	finite-difference time-domain method quasi-static analysis wireless power transfer dosimetry Electronics TK7800-8360
spellingShingle	finite-difference time-domain method quasi-static analysis wireless power transfer dosimetry Electronics TK7800-8360 Minhyuk Kim SangWook Park Modified Finite-Difference Time-Domain Method for Hertzian Dipole Source under Low-Frequency Band
description	In this paper, a modified finite-difference time-domain (FDTD) method is proposed for the rapid analysis of a Hertzian dipole source in the low-frequency band. The FDTD technique is one of the most widely used methods for interpreting high-resolution problems such as those associated with the human body. However, this method has been difficult to use in the low-frequency band as the required number of iterations has increased significantly in such cases. To avoid this problem, FDTD techniques using quasi-static assumptions in low-frequency bands were used. However, this method was applied only to plane wave excitation, making it difficult to apply to near-field problems. Therefore, a modified approach is proposed, involving the application of the FDTD technique with a quasi-static approximation to an electric and magnetic dipole problem. The results when using the proposed method are in good agreement with those from a theoretical solution. An example of comparison with the standard FDTD method is shown for illustrating the proposed method’s performance.
format	article
author	Minhyuk Kim SangWook Park
author_facet	Minhyuk Kim SangWook Park
author_sort	Minhyuk Kim
title	Modified Finite-Difference Time-Domain Method for Hertzian Dipole Source under Low-Frequency Band
title_short	Modified Finite-Difference Time-Domain Method for Hertzian Dipole Source under Low-Frequency Band
title_full	Modified Finite-Difference Time-Domain Method for Hertzian Dipole Source under Low-Frequency Band
title_fullStr	Modified Finite-Difference Time-Domain Method for Hertzian Dipole Source under Low-Frequency Band
title_full_unstemmed	Modified Finite-Difference Time-Domain Method for Hertzian Dipole Source under Low-Frequency Band
title_sort	modified finite-difference time-domain method for hertzian dipole source under low-frequency band
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/c7b82c8fea654a3fa98d31b3d6abef3e
work_keys_str_mv	AT minhyukkim modifiedfinitedifferencetimedomainmethodforhertziandipolesourceunderlowfrequencyband AT sangwookpark modifiedfinitedifferencetimedomainmethodforhertziandipolesourceunderlowfrequencyband
_version_	1718412437050359808

Modified Finite-Difference Time-Domain Method for Hertzian Dipole Source under Low-Frequency Band

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