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Article: Magnetic field integral equation at very low frequencies
Title | Magnetic field integral equation at very low frequencies |
---|---|
Authors | |
Keywords | Electric Field Integral Equation (Efie) Electromagnetic (Em) Scattering Loop/Tree Basis Magnetic Field Integral Equation (Mfie) Rao-Wilton-Glisson (Rwg) Basis Very Low Frequency |
Issue Date | 2003 |
Citation | Ieee Transactions On Antennas And Propagation, 2003, v. 51 n. 8, p. 1864-1871 How to Cite? |
Abstract | It is known that there is a low-frequency break-down problem when the method of moments (MOM) with Rao-Wilton-Glisson (RWG) basis is used in the electric field integral equation (EFIE), which can be solved through the loop and tree basis decomposition. In this paper, the behavior of the magnetic field integral equation (MFIE) at very low frequencies has been investigated using MOM, where two approaches are presented based on the RWG basis and loop and tree bases. The study shows that MFIE can be solved by the conventional MOM with the RWG basis at arbitrarily low frequencies, but there exists an accuracy problem in the real part of the electric current. Although the error in the current distribution is small, it will result in a large error in the far-field computation. This is because big cancellation occurs during the computation of far field. The source of error in the current distribution is easily detected through the MOM analysis using the loop and tree basis decomposition. To eliminate the error, a perturbation method is proposed, from which very accurate real part of the tree current has been obtained. Using the perturbation method, the error in the far-field computation is also removed. Numerical examples show that both the current distribution and the far field can be accurately computed at extremely low frequencies by the proposed method. |
Persistent Identifier | http://hdl.handle.net/10722/182682 |
ISSN | 2023 Impact Factor: 4.6 2023 SCImago Journal Rankings: 1.794 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Zhang, Y | en_US |
dc.contributor.author | Cui, TJ | en_US |
dc.contributor.author | Chew, WC | en_US |
dc.contributor.author | Zhao, JS | en_US |
dc.date.accessioned | 2013-05-02T05:16:25Z | - |
dc.date.available | 2013-05-02T05:16:25Z | - |
dc.date.issued | 2003 | en_US |
dc.identifier.citation | Ieee Transactions On Antennas And Propagation, 2003, v. 51 n. 8, p. 1864-1871 | en_US |
dc.identifier.issn | 0018-926X | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/182682 | - |
dc.description.abstract | It is known that there is a low-frequency break-down problem when the method of moments (MOM) with Rao-Wilton-Glisson (RWG) basis is used in the electric field integral equation (EFIE), which can be solved through the loop and tree basis decomposition. In this paper, the behavior of the magnetic field integral equation (MFIE) at very low frequencies has been investigated using MOM, where two approaches are presented based on the RWG basis and loop and tree bases. The study shows that MFIE can be solved by the conventional MOM with the RWG basis at arbitrarily low frequencies, but there exists an accuracy problem in the real part of the electric current. Although the error in the current distribution is small, it will result in a large error in the far-field computation. This is because big cancellation occurs during the computation of far field. The source of error in the current distribution is easily detected through the MOM analysis using the loop and tree basis decomposition. To eliminate the error, a perturbation method is proposed, from which very accurate real part of the tree current has been obtained. Using the perturbation method, the error in the far-field computation is also removed. Numerical examples show that both the current distribution and the far field can be accurately computed at extremely low frequencies by the proposed method. | en_US |
dc.language | eng | en_US |
dc.relation.ispartof | IEEE Transactions on Antennas and Propagation | en_US |
dc.subject | Electric Field Integral Equation (Efie) | en_US |
dc.subject | Electromagnetic (Em) Scattering | en_US |
dc.subject | Loop/Tree Basis | en_US |
dc.subject | Magnetic Field Integral Equation (Mfie) | en_US |
dc.subject | Rao-Wilton-Glisson (Rwg) Basis | en_US |
dc.subject | Very Low Frequency | en_US |
dc.title | Magnetic field integral equation at very low frequencies | en_US |
dc.type | Article | en_US |
dc.identifier.email | Chew, WC: wcchew@hku.hk | en_US |
dc.identifier.authority | Chew, WC=rp00656 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1109/TAP.2003.814753 | en_US |
dc.identifier.scopus | eid_2-s2.0-0042363722 | en_US |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0042363722&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 51 | en_US |
dc.identifier.issue | 8 | en_US |
dc.identifier.spage | 1864 | en_US |
dc.identifier.epage | 1871 | en_US |
dc.identifier.isi | WOS:000184769400017 | - |
dc.publisher.place | United States | en_US |
dc.identifier.scopusauthorid | Zhang, Y=15924551400 | en_US |
dc.identifier.scopusauthorid | Cui, TJ=7103095470 | en_US |
dc.identifier.scopusauthorid | Chew, WC=36014436300 | en_US |
dc.identifier.scopusauthorid | Zhao, JS=7410309451 | en_US |
dc.identifier.issnl | 0018-926X | - |