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      Analysis of slotted sectoral waveguides embedded in cylindrically stratified media using closed-form Green's function representations

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      Author
      Kalfa, Mert
      Erturk, Vakur B.
      Date
      2013
      Source Title
      2013 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)
      Publisher
      IEEE
      Pages
      157
      Language
      English
      Type
      Conference Paper
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      Abstract
      Slotted waveguide antenna arrays with dielectric covers are widely used in both military and civil applications due to their low-profile, high power handling capacity, and the ability to conform to the host platform. Conformity is especially required for air platforms where aerodynamics and radar cross section (RCS) of the vehicle are of utmost importance. For an air platform, one or more dielectric layers (monolithic or sandwich radomes) can be used to protect the antenna from the extreme flight conditions. Although the accurate and efficient design and analysis of low-profile conformal slotted waveguide arrays is of great interest, available solution methods in the literature usually suffer in terms of efficiency and memory requirements. Among the available solution methods, one of the widely used solvers are integral equation (IE) based ones that utilize the method of moments (MoM). However, the IE solvers suffer from long matrix fill times, especially when cylindrically stratified media are considered. © 2013 IEEE.
      Keywords
      Electromagnetic waveguides
      Green's function methods
      Slot antennas
      Dielectrics
      Method of moments
      Magnetic domains
      Nonhomogeneous media
      Permalink
      http://hdl.handle.net/11693/27904
      Published Version (Please cite this version)
      http://dx.doi.org/10.1109/USNC-URSI.2013.6715463
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      • Department of Electrical and Electronics Engineering 3524
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