Browsing by Subject "Dual series ecpiations"

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    Analysis of cylindrical reflector antennas in the presence of circular radomes by complex source-dual series approach
    (1996) Oğuzer, Taner
    The radiation from cylindrical reflector antennas is analyzed in an accurate manner for both H and E polarization cases. The problem is first formulated in terms of the dual series equations and then it is regularized by the Riemann Hilbert Problem technique. The resulting matrix equation is solved numerically with a guaranteed accuracy, and remarkably little CPU time is needed. The feed directivity is included in the analysis by the complex source point method. Various characteristic patterns are obtained for the front and offset-fed reflector antenna geometries with this analysis and some comparisons are made with the high frequency techniques. The directivity and radiated power properties are also studied. Furthermore, the results are also compared by the .Method Of Moments and Physical Optics solutions. Then the case of circular radome enclosing the reflector is considered. Radomes concentric with the reflector are examined first, followed by the non-concentric radomes.