Investigations of Non-Physical Characteristic Modes of Material Bodies

Huang, S; Pan, J; Luo, Y

Investigations of Non-Physical Characteristic Modes of Material Bodies

Huang, S

Pan, J Luo, Y

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Publication Type:: Journal Article
Citation:: IEEE Access, 2018, 6 pp. 17198 - 17204
Issue Date:: 2018-03-21

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Field	Value	Language
dc.contributor.author	Huang, S https://orcid.org/0000-0002-0742-5760	en_US
dc.contributor.author	Pan, J	en_US
dc.contributor.author	Luo, Y https://orcid.org/0000-0002-1994-2650	en_US
dc.date.issued	2018-03-21	en_US
dc.identifier.citation	IEEE Access, 2018, 6 pp. 17198 - 17204	en_US
dc.identifier.uri	http://hdl.handle.net/10453/132089
dc.description.abstract	© 2018 IEEE. Recently, researchers noticed that there are non-physical modes in characteristic modes of material bodies. In this paper, those non-physical modes are investigated. The reason for the non-physical modes is discussed. The influence of integral equations' internal resonance on the non-physical modes are studied. It is concluded that the internal resonance is not responsible for the non-physical modes. Meanwhile, based on the extinction theorem, the dependent relationship between the equivalent surface electric and magnetic currents are proposed, and it is observed that the non-physical modes do not obey the dependent relationship, whereas the physical modes are governed by the dependent relationship. Therefore, it can be concluded that the lack of the dependent relationship causes the non-physical modes. Besides, based on the dependent relationship, a novel post-processing method to remove the non-physical modes is proposed. Numerical results of a dielectric cylinder are presented to validate the discussions and new post-processing method.	en_US
dc.relation.ispartof	IEEE Access	en_US
dc.relation.isbasedon	10.1109/ACCESS.2018.2818196	en_US
dc.title	Investigations of Non-Physical Characteristic Modes of Material Bodies	en_US
dc.type	Journal Article
utslib.citation.volume	6	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
utslib.for	08 Information and Computing Sciences	en_US
utslib.for	09 Engineering	en_US
utslib.for	10 Technology	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Students
utslib.copyright.status	open_access
pubs.publication-status	Published	en_US
pubs.volume	6	en_US

Abstract:

© 2018 IEEE. Recently, researchers noticed that there are non-physical modes in characteristic modes of material bodies. In this paper, those non-physical modes are investigated. The reason for the non-physical modes is discussed. The influence of integral equations' internal resonance on the non-physical modes are studied. It is concluded that the internal resonance is not responsible for the non-physical modes. Meanwhile, based on the extinction theorem, the dependent relationship between the equivalent surface electric and magnetic currents are proposed, and it is observed that the non-physical modes do not obey the dependent relationship, whereas the physical modes are governed by the dependent relationship. Therefore, it can be concluded that the lack of the dependent relationship causes the non-physical modes. Besides, based on the dependent relationship, a novel post-processing method to remove the non-physical modes is proposed. Numerical results of a dielectric cylinder are presented to validate the discussions and new post-processing method.

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http://hdl.handle.net/10453/132089