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      • Dept. of Electrical and Electronics Engineering - Master's degree
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      •   BUIR Home
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      • Bilkent Theses
      • Theses - Department of Electrical and Electronics Engineering
      • Dept. of Electrical and Electronics Engineering - Master's degree
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      Numerical study of plane wave scattering from cylindrical cavity-backed apertures with outer or inner material coating

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      Author(s)
      Çolak, Dilek
      Advisor
      Altıntaş, Ayhan
      Date
      1993
      Publisher
      Bilkent University
      Language
      English
      Type
      Thesis
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      Abstract
      In this thesis, a dual-series-based solution is obtained for the scattering of a time harmonic plane wave from a cavity-backed aperture(CBA) which is formed by a slitted infinite circular cylinder coated with absorbing material. The material coating can be done on the inner or outer surface of the cylinder. For both cases, numerical results are presented for the radar cross section (RCS) and comparisons of the suppression of RCS are given for two different realistic absorbing materials. Finally, the dependence of RCS on the thickness of the absorbing layer and on the aspect angle of the screen are presented numerically. To the best of our knowledge, this is the first study made so far to solve the problems of CBAs with material coating inside or outside with this approach.
      Keywords
      Radar Cross Section (RCS)
      cavity-backed aperture (CBA)
      Riemann-Hilbert problem (RHP)
      Electromagnetic Scattering
      Dual-Series Equations
      Permalink
      http://hdl.handle.net/11693/17473
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      • Dept. of Electrical and Electronics Engineering - Master's degree 621
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