CASPIAN JOURNAL
MANAGEMENT AND HIGH TECHNOLOGIES
BUILDING GEOMETRICAL MODEL OF RADIATION OF THE MIRROR PARABOLIC ANTENNA
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Read | Shirshov Maksim V., Yurkov Nikolay K., Yakimov Aleksandr N. BUILDING GEOMETRICAL MODEL OF RADIATION OF THE MIRROR PARABOLIC ANTENNA // Caspian journal : management and high technologies. — 2014. — №2. — pp. 138-148. |
Shirshov Maksim V. - post-graduate student, Penza State University, 40 Krasnaya St., Penza, 440026, Russian Federation, admin@r4f.su
Yurkov Nikolay K. - D.Sc. (Engineering), Penza State University, 40 Krasnaya St., Penza, 440026, Russian Federation, yurkov_nk@mail.ru
Yakimov Aleksandr N. - D.Sc. (Engineering), Penza State University, 40 Krasnaya St., Penza, 440026, Russian Federation, admin@r4f.su
To investigate the radiation antenna parabolic mirror (PAD) mathematical modeling, it is necessary to construct a geometric model, replacing the antenna radiating surface polyhedron. The field radiation pattern of the antenna is represented as a superposition of fields generated by currents flowing along the edges of the model taking into account the amplitudes and phases of these faces propagating waves. Unlike polyhedron from parabolic leads to phase errors, minimization of which is an important task. The authors propose an algorithm for constructing a geometric model of the radiating surface of PAD based on Delaunay triangulation method, which made possible the sampling of the radiating surface of the antenna, get together nodal points forming the finite elements of the surface in the form of equilateral triangles and flat, respectively, the coordinates of these points. This data is sufficient to perform the calculation as fields formed end surface of the antenna radiating elements, and to locate them in view of the spatial superposition of these elements and the orientation of the vector nature of the electromagnetic field. The estimation error of the presented model. The proposed algorithm based on Delaunay triangulation method, ensures that the requirements for the maximum allowable phase error with minimal computational cost. This enables not only to use the model for calculating specula radiation characteristics of a PAD, but also to evaluate the effect of external influences on the antenna structure finite element method.
Key words: излучающая поверхность, модель, антенна, триангуляция, конечный элемент, пространственная ориентация, суперпозиция, электромагнитное поле, фазовая ошибка, погрешность, radiation surface, model, antenna, triangulation, finite element, spatial orientation,