Sufficient Conditions for Zero Backscattering by a Uniaxial Dielectric-Magnetic Scatterer Endowed With Magnetoelectric Gyrotropy
As vector wavefunctions are available to represent incident and scattered fields in an isotropic dielectric-magnetic medium endowed with magnetoelectric gyrotropy, a transition matrix can be conceptualized to relate the scattered field coefficients to the incident field coefficients for scattering b...
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| Veröffentlicht in: | IEEE transactions on antennas and propagation 2020-02, Vol.68 (2), p.1023-1030 |
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| container_title | IEEE transactions on antennas and propagation |
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| creator | Alkhoori, Hamad M. Lakhtakia, Akhlesh Breakall, James K. Bohren, Craig F. |
| description | As vector wavefunctions are available to represent incident and scattered fields in an isotropic dielectric-magnetic medium endowed with magnetoelectric gyrotropy, a transition matrix can be conceptualized to relate the scattered field coefficients to the incident field coefficients for scattering by an arbitrary scatterer composed of a linear medium. The elements of the transition matrix must satisfy certain conditions for zero backscattering. For a scatterer composed of a uniaxial dielectric-magnetic medium endowed with magnetoelectric gyrotropy, the extended boundary condition method (EBCM) can be formulated to determine the transition matrix. The numerical results obtained thereby lead to the formulation of a sufficient set of three zero-backscattering conditions: (i) the scatterer is a body of revolution with the incident plane wave propagating along the axis of revolution; (ii) the impedances of both mediums are identical; and (iii) the magnetoelectric-gyrotropy vectors of both mediums are aligned along the axis of revolution, whether or not both magnetoelectric-gyrotropy vectors are co-parallel. |
| doi_str_mv | 10.1109/TAP.2019.2940625 |
| format | Article |
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The elements of the transition matrix must satisfy certain conditions for zero backscattering. For a scatterer composed of a uniaxial dielectric-magnetic medium endowed with magnetoelectric gyrotropy, the extended boundary condition method (EBCM) can be formulated to determine the transition matrix. The numerical results obtained thereby lead to the formulation of a sufficient set of three zero-backscattering conditions: (i) the scatterer is a body of revolution with the incident plane wave propagating along the axis of revolution; (ii) the impedances of both mediums are identical; and (iii) the magnetoelectric-gyrotropy vectors of both mediums are aligned along the axis of revolution, whether or not both magnetoelectric-gyrotropy vectors are co-parallel.</description><identifier>ISSN: 0018-926X</identifier><identifier>EISSN: 1558-2221</identifier><identifier>DOI: 10.1109/TAP.2019.2940625</identifier><identifier>CODEN: IETPAK</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Backscatter ; Backscattering ; Boundary conditions ; Dielectric anisotropy ; Dielectrics ; electromagnetic scattering ; Impedance ; magnetic anisotropy ; Magnetoelectric effects ; magnetoelectric gyrotropy ; Markov analysis ; Matrix methods ; Perpendicular magnetic anisotropy ; Plane waves ; Scattering ; Wave functions ; Wave propagation</subject><ispartof>IEEE transactions on antennas and propagation, 2020-02, Vol.68 (2), p.1023-1030</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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The elements of the transition matrix must satisfy certain conditions for zero backscattering. For a scatterer composed of a uniaxial dielectric-magnetic medium endowed with magnetoelectric gyrotropy, the extended boundary condition method (EBCM) can be formulated to determine the transition matrix. The numerical results obtained thereby lead to the formulation of a sufficient set of three zero-backscattering conditions: (i) the scatterer is a body of revolution with the incident plane wave propagating along the axis of revolution; (ii) the impedances of both mediums are identical; and (iii) the magnetoelectric-gyrotropy vectors of both mediums are aligned along the axis of revolution, whether or not both magnetoelectric-gyrotropy vectors are co-parallel.</description><subject>Backscatter</subject><subject>Backscattering</subject><subject>Boundary conditions</subject><subject>Dielectric anisotropy</subject><subject>Dielectrics</subject><subject>electromagnetic scattering</subject><subject>Impedance</subject><subject>magnetic anisotropy</subject><subject>Magnetoelectric effects</subject><subject>magnetoelectric gyrotropy</subject><subject>Markov analysis</subject><subject>Matrix methods</subject><subject>Perpendicular magnetic anisotropy</subject><subject>Plane waves</subject><subject>Scattering</subject><subject>Wave functions</subject><subject>Wave propagation</subject><issn>0018-926X</issn><issn>1558-2221</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kE1LAzEQhoMoWKt3wUvA89Z8bjfHWmsVKgptUbwsaXa2ptZNTVJ0b_50t2z1NAzzvPPCg9A5JT1KibqaDZ56jFDVY0qQlMkD1KFSZgljjB6iDiE0SxRLX47RSQirZhWZEB30M92WpTUWqoiHripstK4KuHQev4J3-Fqb92B0jOBttcSLGms8r6z-tnqNbyyswURvTfKglxVEa_C0hcHjUVW4Lyjws41vuL27Px6Pa--id5v6FB2Veh3gbD-7aH47mg3vksnj-H44mCSGcx4TrsFwwQvJ-yzt04JnRKSK9YEulJZplhFWLhaSCwpUaVEokLrMMi60Ero0infRZft3493nFkLMV27rq6YyZ1wSKkXjpKFISxnvQvBQ5htvP7Svc0rynee88ZzvPOd7z03koo1YAPjHm2qVKsF_AcWtets</recordid><startdate>20200201</startdate><enddate>20200201</enddate><creator>Alkhoori, Hamad M.</creator><creator>Lakhtakia, Akhlesh</creator><creator>Breakall, James K.</creator><creator>Bohren, Craig F.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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The elements of the transition matrix must satisfy certain conditions for zero backscattering. For a scatterer composed of a uniaxial dielectric-magnetic medium endowed with magnetoelectric gyrotropy, the extended boundary condition method (EBCM) can be formulated to determine the transition matrix. The numerical results obtained thereby lead to the formulation of a sufficient set of three zero-backscattering conditions: (i) the scatterer is a body of revolution with the incident plane wave propagating along the axis of revolution; (ii) the impedances of both mediums are identical; and (iii) the magnetoelectric-gyrotropy vectors of both mediums are aligned along the axis of revolution, whether or not both magnetoelectric-gyrotropy vectors are co-parallel.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TAP.2019.2940625</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0002-8793-1769</orcidid><orcidid>https://orcid.org/0000-0003-4314-9107</orcidid><orcidid>https://orcid.org/0000-0003-4694-4042</orcidid><orcidid>https://orcid.org/0000-0002-2179-2313</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Backscatter Backscattering Boundary conditions Dielectric anisotropy Dielectrics electromagnetic scattering Impedance magnetic anisotropy Magnetoelectric effects magnetoelectric gyrotropy Markov analysis Matrix methods Perpendicular magnetic anisotropy Plane waves Scattering Wave functions Wave propagation |
| title | Sufficient Conditions for Zero Backscattering by a Uniaxial Dielectric-Magnetic Scatterer Endowed With Magnetoelectric Gyrotropy |
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