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Browse Journals & Magazines > Microwaves, Antennas and Prop ...> Volume:144 Issue:5 Help

Scattering by a right-angled lossy dielectric wedge

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3 Author(s)
Demetrescu, C. ; Sch. of Electron. & Electr. Eng., Birmingham Univ., UK ; Constantinou, C.C. ; Mehler, M.J.

Electromagnetic scattering by a right-angled lossy dielectric wedge at normal incidence is considered in detail. The lossy dielectric material of the wedge is simulated using second-order impedance boundary conditions on its faces. The Maliuzhinets (1958) method is employed to obtain the total exterior field. A high-frequency asymptotic approximation of the Sommerfeld integral is carried out to obtain a UTD expression for the total field. The predictions are validated against experimental measurements taken in a controlled laboratory environment. A comparison with the widely used heuristic UTD diffraction coefficient of Luebbers (1984) is presented and the validity of the latter coefficient is discussed

Published in:
Microwaves, Antennas and Propagation, IEE Proceedings  (Volume:144 ,  Issue: 5 )

Date of Publication: Oct 1997

Page(s):
392 - 396
ISSN :
1350-2417
INSPEC Accession Number:
5740762
Digital Object Identifier :
10.1049/ip-map:19971298
Product Type:
Journals & Magazines
Date of Current Version :
06 August 2002
Issue Date :
Oct 1997
Sponsored by :
IET

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