Теорія та техніка антен (ICATT 2009). – 2009 р.

Permanent URI for this collectionhttps://ena.lpnu.ua/handle/ntb/3740

Матеріали 7-ої Міжнародної конференції

У книзі зібрано матеріали конференції, присвяченої проблемам у галузі розробки і впровадження антен.

Теорія та техніка антен = Antenna theory and techniques : матеріали 7-ої Міжнародної конференції, 9–12 червня 2009 року, Львів, Україна. – Львів : Видавництво Національного університету "Львівська політехніка", 2009. – 400 с. : іл.

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    Scattering properties of thin conductive fibres
    (Видавництво Національного університету "Львівська політехніка", 2009) Demidchik, V. I.; Kornev, R. V.; Kuharchik, P. D.
    Radar cross section of arbitrary-shaped thin conductive fibers was calculated within the frames of thin-wire approximation using the method of integral equation. The influence of fiber geometry and their conductivity on RCS resonance frequency and resonance bandwidth were estimated.
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    The electromagnetic waves diffraction on finite aperture array
    (Видавництво Національного університету "Львівська політехніка", 2009) Borodinskiy, A. A.; Zemlyakov, V. V.; Lerer, A. M.; Siniavskiy, G. P.
    The diffraction both plane monochromatic wave and ultra short electromagnetic impulse is discussed. At the heart of the solution the method of integral equation in space-frequency and time-space representations is used. Integral equations are solved by the Galerkin’s method with Tchebyshev basis which is everywhere except corner points takes into account the field singularity at the metal edges. Moreover in time-space equations splines are used for approximation of time dependence solution. The methods of effective calculation of matrix elements in the system of linear algebraic equations are discussed. The C# program is worked out. The investigation results are given.
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    A new approach to analysis of curvilinear conducting surface radiators
    (Видавництво Національного університету "Львівська політехніка", 2009) Dubrovka, F. F.; Tolkachov, O. V.
    We present a new approach to analysis of curvilinear perfect conducting surface radiators. The feature of this approach is a formulation of boundary value problem as a system of integral equations in regard to the complex electrodynamic vector potential and the scalar potential and simultaneous solution of this system for unknown distributions of current density vector and charge density using technique of parametrical mapping for representing curvilinear surface and the Galerkin’s method with boundary elements. Advantages of the approach in comparison with the Harrington integral equation on example of surface current distributions at the third order surface (Ferguson’spatches) are demonstrated.