WoS İndeksli Yayınlar Koleksiyonu
Permanent URI for this collectionhttps://hdl.handle.net/20.500.12416/8653
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Article Citation - WoS: 1Citation - Scopus: 1Boundary Diffraction Wave Theory of Resistive Surfaces With Edge Discontinuities(Elsevier, 2011) Umul, Yusuf ZiyaThe line integral of the boundary diffraction wave theory is derived by considering the exact diffracted fields of a resistive half-plane. The line integral is generalized for arbitrary resistive surface with edge discontinuity. The method is applied to the diffraction problem of waves by a convex resistive spherical reflector and the resultant field expressions are investigated numerically. (C) 2011 Elsevier B.V. All rights reserved.Article The Physical Optics of Phase-Conjugate Mirrors: Scalar Theory(Elsevier, 2011) Umul, Yusuf ZiyaA scalar theory of physical optics is developed for the scattered waves by finite or infinite phase-conjugate mirrors. The method is applied to the scattering problem of waves by a semi-infinite phase-conjugate mirror. The results are examined numerically and compared with the scattered waves by a conducting half-plane. The effect of the phase-conjugation to the location of the transition region is outlined. (C) 2011 Elsevier B.V. All rights reserved.Article Citation - WoS: 13Citation - Scopus: 13The Effect of Impedance Boundary Conditions on the Potential Function of the Boundary Diffraction Wave Theory(Elsevier, 2008) Yalcin, U.; Umul, Y. Z.A novel potential function of the boundary diffraction wave theory is obtained for the impedance surfaces by the asymptotic reduction of the modified theory of physical integrals. The function is expressed in terms of the direction vectors of the incident and scattered rays. The application of the method is performed on the problem of diffraction of plane waves by an impedance half plane for oblique incidence. (c) 2007 Elsevier B.V. All rights reserved.