Osipov, Andrey und Senior, Thomas (2008) Diffraction and reflection of a plane electromagnetic wave in a right-angle corner with impedance walls. In: Proceedings of the 29th General Assembly of International Union of Radio Science (URSI). XXIXth URSI General Assembly, 2008-08-09 - 2008-08-16, Chicago, Illinois (USA).
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Kurzfassung
We study the behavior of an electromagnetic field in a right-angle interior wedge-shaped region with impedance faces. This geometry is a useful model for a variety of applications in radar and wireless communication technologies. An exact solution of the general problem for an arbitrary-angle wedge with tensor impedance boundary conditions excited by an incident plane electromagnetic wave is specialized to the case of a 90° wedge with diagonal tensor impedances. We present explicit expressions for the geometrical optics portion of the field and show that they are continuous inside the region only if a compatibility condition on the face impedances is met. In general the geometrical optics fields are discontinuous at the direction of incidence and the edge-diffracted field gets excited in the region to make the total field continuous. Numerical results illustrate the edge-diffracted field as a function of observation angle for several impedance combinations, showing the overall increase as the impedance compatibility condition is increasingly not met.
elib-URL des Eintrags: | https://elib.dlr.de/55033/ | ||||||||||||
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Dokumentart: | Konferenzbeitrag (Vortrag, Paper) | ||||||||||||
Titel: | Diffraction and reflection of a plane electromagnetic wave in a right-angle corner with impedance walls | ||||||||||||
Autoren: |
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Datum: | 13 August 2008 | ||||||||||||
Erschienen in: | Proceedings of the 29th General Assembly of International Union of Radio Science (URSI) | ||||||||||||
Open Access: | Nein | ||||||||||||
Gold Open Access: | Nein | ||||||||||||
In SCOPUS: | Nein | ||||||||||||
In ISI Web of Science: | Nein | ||||||||||||
Status: | veröffentlicht | ||||||||||||
Stichwörter: | anisotropic surfaces, diffraction coefficient, dihedral corner reflector, GTD/ UTD, wedge | ||||||||||||
Veranstaltungstitel: | XXIXth URSI General Assembly | ||||||||||||
Veranstaltungsort: | Chicago, Illinois (USA) | ||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||
Veranstaltungsdatum: | 2008-08-09 - 2008-08-16 | ||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||
HGF - Programm: | Luftfahrt | ||||||||||||
HGF - Programmthema: | Starrflügler (alt) | ||||||||||||
DLR - Schwerpunkt: | Luftfahrt | ||||||||||||
DLR - Forschungsgebiet: | L AR - Starrflüglerforschung | ||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | L - Militärische Technologien (alt) | ||||||||||||
Standort: | Oberpfaffenhofen | ||||||||||||
Institute & Einrichtungen: | Institut für Hochfrequenztechnik und Radarsysteme > Aufklärung und Sicherheit | ||||||||||||
Hinterlegt von: | Osipov, Dr. Andrey | ||||||||||||
Hinterlegt am: | 25 Aug 2008 | ||||||||||||
Letzte Änderung: | 12 Dez 2013 20:32 |
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