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Articles on the topic and scientific software for the mathematical modeling of complex antennas and electrodynamic systems.



Antenna Array


Antenna array

Complex directional antenna consists of separate near-omnidirectional antennas (radiating elements) positioned in the space and driven by high-frequency …

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“RefereesHelp Race”

This software can help register the contestants and also makes it easy to get the tournament scores, fill and print the score-sheets.

 



RefereesHelp Race is a professional solution for keeping record at running, swimming and skiing competitions. RefereesHelp Race can help register the contestants and also makes it easy to get the tournament scores, fill and print …


This software can help register the contestants and also makes it easy to get the tournament scores, fill and print the score-sheets.


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“Influence of boundary effects on characteristics of wideband antenna array”

In the work [1] based on the model of an infinite antenna array, a flat antenna array consisting of compact radiators with impedance structure of large inductive …

 



Based on the solution of the boundary value problem for an infinite antenna array, a mathematical model of a finite flat antenna array in an infinite screen with impedance structure is built. Results of calculations are given by the example of radiant …


In the work [1] based on the model of an infinite antenna array, a flat antenna array consisting of compact radiators with impedance structure of large inductive magnitude is considered. However, usage in antenna arrays of radiators of small electric sizes with accordingly small distances between them (strong interdependence) requires the following question to be answered: which geometrical size of the radiating row of a real antenna array must have for decreasing of interdependence between the radiators will not significantly decrease their performance.
 



In section of “Publications-Archive” the “Mathematical modeling of microstrip oscillators in layered media” archival article is published. Author: V. V. Chebyshev.


In the article was a study of mathematical modeling of microstrip oscillators with a substrate in the form of plane layered media based on the use of integral and integro–differential equations of the first kind; there was provided substantiation and the basics of building the algorithms of a numerical solution to the equations; examples of the numerical study of the equations for oscillators and layered media with varied topology were given; the case of microstrip oscillators with …