Browsing by Subject "Half-planes"

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    Analysis of edge waves due to a point source in the presence of a PEC wedge
    (IEEE, 2014) Ghassemiparvin, Behnam; Altıntaş, Ayhan
    In this paper, we investigate the behavior of the field in the paraxial region of a perfectly conducting wedge and analyze the guiding effect of the wedge. It is observed that as the wedge angle increases, the guidance effect of the wedge decreases and the scattered field in the paraxial region is maximum for the half plane. In addition, interaction of the edge waves with a spherical impedance scatterer is investigated. It is found that for the backscattering case, as the impedance mismatch between the spherical boss and the free-space increases the scattered field due to the boss increases. However for the forward scattering case, impedance of the boss does not affect the scattered field significantly.
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    Stability of fractional neutral systems with multiple delays and poles asymptotic to the imaginary axis
    (IEEE, 2010) Fioravanti, A. R.; Bonnet, C.; Özbay, Hitay
    This paper addresses the H∞-stability of linear fractional systems with multiple commensurate delays, including those with poles asymptotic to the imaginary axis. The asymptotic location of the neutral chains of poles are obtained, followed by the determination of conditions that guarantee a finite H∞ norm for those systems with all poles in the left half-plane of the complex plane.