Çankaya GCRIS Standart veritabanının içerik oluşturulması ve kurulumu Research Ecosystems (https://www.researchecosystems.com) tarafından devam etmektedir. Bu süreçte gördüğünüz verilerde eksikler olabilir.

Browsing by Author "Kara, Mustafa"

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    Master Thesis
    Diffraction of the packet-like and nondiffracting propagating beams by an obstacle in the atmosphere
    (2008) Kara, Mustafa
    This thesis takes two different solutions of homogenous wave equation into consideration. These solutions are named as packet-like solution and non-diffracting beam.First of all the propagation of these waves in the atmosphere is investigated. As a second step, an obstacle (a knife edge) is located on the propagation path of the diffracting beam and the diffraction effects are examined. The results are plotted numerically by using MATLAB
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    Doctoral Thesis
    Scattering of evanescent waves by reflectors
    (Çankaya Üniversitesi, 2017) Kara, Mustafa
    In this thesis, the scattering integral of electromagnetic incident waves scattered by a cylindrical parabolic perfectly electric conducting reflector is evaluated asymptotically. For the determination of the reflected fields the method of stationary phase, and for the diffracted fields the edge point method, whose details are given in appendix, are employed. A plane wave with an arbitrary angle is assumed as incident on the reflector. The evaluated reflected and diffracted fields are examined numerically for any observation point. In the evaluation of diffracted fields, the non-uniform diffracted field expression encountered is overcome by means of Fresnel function. For the numerical analysis, basically two cases are taken into consideration. One of them is the incident angle being real, and the other is the complex value of it. For these values, the effects of all possible combinations including the complex conjugates are examined and plotted numerically.