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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 …

(from 'Glossary' of our web–site)

   
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“GuidesArray Circular”

With this program you can execute mathematical modelling by the phased periodic plane antennas array from circular wave guides in sector of angles and a band …

 



GuidesArray Circular is supposed for purposes of modeling of phased antenna arrays created using circular waveguides. Such antenna arrays can be used as transmit \ receive antenna systems for radio- and television-broadcast centers, cellular and paging …


With this program you can execute mathematical modelling by the phased periodic plane antennas array from circular wave guides in sector of angles and a band of frequencies.
The offered mathematical model is founded on an electrodynamic solution of a boundary task in a unit mesh of infinite structure.


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“Mathematical modeling of multi-layer polarizers on meander lines”

When considering the problem of transformation of electromagnetic field of the linear polarization within the field of elliptic polarization, and vice versa, the multi-layer …

 



The problem of flat wave diffraction on a multi-layer meander polarizer is solved in a strict electrodynamic setting; to approximate the required electrical current a full orthogonal system of basis functions has been proposed; for the one- and four-layer …


When considering the problem of transformation of electromagnetic field of the linear polarization within the field of elliptic polarization, and vice versa, the multi-layer meander polarizers (MMP) in the wide band are of practical interest. [1] shows the solution of the boundary problem of electrodynamics as well as defines the scattering signatures of a flat wave on one polarizer layer.
For a number of layers however an approximate approach based on neglect of interaction between the layers as per the highest type of spatial harmonics has been used. This allowed to find the scattering matrix of a multi-layer polarizer via the scattering matrix of one of its layers. The problem related to estimate of applicability boundaries of such approach has not been con-sidered…
 



In section of “Publications-Archive” the “Admittances of antenna array waveguide radiators on a wedge: deducing the main relations” archival article is published. Author: E. M. Privalov.


In the article equations for the “irregular” and “regular” transfer admittance of the waveguide radiators of an antenna array located on a side of an infinite ideally conductive wedge is deduced.