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Başlık için Elektronik ve Haberleşme Mühendisliği Bölümü Yayın Koleksiyonu listeleme

Başlık için Elektronik ve Haberleşme Mühendisliği Bölümü Yayın Koleksiyonu listeleme

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  • Wave diffraction by a conductive half-plane between two different media 
    Umul, Yusuf Ziya (Elsevier GMBH, 2019)
    The scattering of waves by a conductive half-screen, which reflects some portion of the incident energy and transmits the remaining part, between two media with different electromagnetic properties is investigated. First ...
  • Wave diffraction by a half-plane for grazing incidence 
    Umul, Yusuf Ziya (Elsevier GMBH, 2018-03)
    The diffracted wave, related with a half-plane on which the total field satisfies the Dirichlet boundary condition, becomes zero when the angle of incidence of the incident wave is equal to zero according to the solution ...
  • Wave diffraction by a half-screen with Nth order generalized sheet transition conditions 
    Umul, Yusuf Ziya (Elsevier GMBH, Urban & Fischer Verlag, 2019)
    The scattering of plane waves by a half-plane with Nth order transition conditions is investigated. First of all, the reflection and transmission conditions of the transmissive surface are evaluated by using the generalized ...
  • Wave diffraction by a metallic half-plane 
    Umul, Yusuf Ziya (Elsevier GMBH, 2016)
    The scattering problem of plane waves by a half-screen with different face impedance is obtained with a geometrical optics-physical optics based method. The kernel of the physical optics integral is redefined by using ...
  • Wave diffraction by a perfect electromagnetic conductor wedge 
    Umul, Yusuf Ziya (Elsevier GMBH, 2019-04)
    The scattering of plane electromagnetic waves by a perfect electromagnetic conductor wedge is investigated. The diffraction coefficient of the wedge is obtained by considering the structure of the scattered waves by a whole ...
  • Wave diffraction by a perfect magnetic conductor half-plane between free space and anisotropic plasma 
    Umul, Yusuf Ziya (2020-12)
    The diffraction of magnetic polarized electromagnetic plane waves by a perfect magnetic conductor half-screen, located between free space and anisotropic plasma, is studied. The method of transition boundary is used for ...
  • Wave diffraction by a reflectionless half-plane 
    Umul, Yusuf Ziya (Optical Soc Amer, 2017-11-20)
    The concept of reflectionless surface is put forth, and its reflection and transmission coefficients are determined by using the scattered geometrical optics fields of transmissive and perfectly electric conducting surfaces. ...
  • Wave diffraction by a right-angled interface between resistive half and whole planes 
    Umul, Yusuf Ziya (Elsevier GMBH, 2018-02)
    The interaction phenomenon of electromagnetic plane waves by a right angled interface between whole and half screens with different resistivities is studied. The construction, under examination, is considered in order to ...
  • Wave diffraction by a soft/hard strip: Modified theory of physical optics solution 
    Umul, Yusuf Ziya (Elsevier GMBH, 2018-03)
    The scattering problem of waves by a strip, the faces of which are composed of soft and hard surfaces, is investigated by the method of modified theory of physical optics. The scattering integral is divided into two parts ...
  • Wave diffraction by a thin lossy dielectric half-plane 
    Umul, Yusuf Ziya (2021-10)
    The scattering of electromagnetic waves by a thin lossy dielectric half-plane is investigated. With this aim, the interaction process of waves with a dielectric layer is studied. The reflection and transmission coefficients ...
  • Wave diffraction by an impedance wedge 
    Umul, Yusuf Ziya (2020-03)
    A new diffraction field expression is proposed for a wedge with different face impedances. The modified theory of physical optics based diffraction coefficient is taken into account. The reflection coefficients are expressed ...
  • Wave diffraction by material half-planes 
    Umul, Yusuf Ziya (Elsevier GMBH, 2017)
    The diffraction of E-polarized electromagnetic waves by resistive and conductive half planes is studied. The solution of Maliuzhinets for the scattering problem of plane waves from an impedance half-screen is taken into ...
  • Wave diffraction by material half-planes 
    Umul, Yusuf Ziya (Elsevier GMBH, 2017)
    The diffraction of E-polarized electromagnetic waves by resistive and conductive half planes is studied. The solution of Maliuzhinets for the scattering problem of plane waves from an impedance half-screen is taken into ...
  • Wave diffraction by the junction between resistive and soft-hard half-screens 
    Umul, Yusuf Ziya (Elsevier GMBH, 2017)
    The scattering process of planes waves by a junction between resistive and soft/hard half-planes is investigated. First of all, the initial and total geometrical optics fields are determined by considering the related ...
  • Wave interaction with a perfect electromagnetic conductor half plane between two dissimilar media 
    Umul, Yusuf Ziya (Elsevier GMBH, 2019)
    The interaction of electromagnetic plane wave by a perfect electromagnetic conductor half-plane, located between two media with different electromagnetic properties, is investigated. The diffracted waves, related with the ...
  • Wavelet based flickering flame detector using differential PIR sensors 
    Erden, Fatih; Töreyin, Behçet Uğur; Soyer, E.Birey; İnaç, İhsan; Günay, Osman; Köse, Kıvanç; Çetin, A. Enis (Elsevier Science LTD, 2012-10)
    A Pyro-electric Infrared (FIR) sensor based flame detection system is proposed using a Markovian decision algorithm. A differential PIR sensor is only sensitive to sudden temperature variations within its viewing range and ...
  • Wedge diffraction in terms of the method of physical optics 
    Umul, Yusuf Ziya (IEICE-INTS Electronics Express, 2009-01-10)
    The method of physical optics is extended for wedge diffraction. The classical integral of physical optics is taken into account for the diffraction problem of plane waves by a conducting half-plane. The integral is ...
  • Wedge diffraction model in gravitational lensing by cosmic strings 
    Umul, Yusuf Ziya (Elsevier GMBH, 2018-03)
    A cosmic string forms a conical topology, which enables a diffraction phenomenon by a wedge with an inner angle, equals to the double of the deficit angle. A wedge, on the edge of which the string is located, is defined ...
  • Wide bandpass and narrow bandstop microstrip filters based on hilbert fractal geometry: design and simulation results 
    Mezaal, Yaqeen S.; Eyyuboğlu, Halil T.; Ali, Jawad K. (Public Library Science, 2014-12-23)
    This paper presents new Wide Bandpass Filter (WBPF) and Narrow Bandstop Filter (NBSF) incorporating two microstrip resonators, each resonator is based on 2nd iteration of Hilbert fractal geometry. The type of filter as ...
  • Wideband hexagonal type antenna design for 5g networks 
    Yıldıran, Orçun; Başdemir, Hüsnü Deniz (IEEE, 2017)
    In this paper, hexagonal type antenna for the next generation (5G) mobile networks is proposed. Both the microstrip feed line and coaxial feed techniques are used to feed the antenna. The best feed point location for both ...