

Antenna array Complex directional antenna consists of separate nearomnidirectional antennas (radiating elements) positioned in the space and driven by highfrequency … (from 'Glossary' of our web–site) 
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Search on siteUse tags cloud or enter into field a search phrase and choose section of search. 1/ 2/ 3/ This work considers results of research of characteristics of rectangular printedcircuit radiators in plane phased antenna arrays. The research is conducted by using computer modeling and the mathematical model described in [1].
Proceedings of institutes of MV and SSO USSR. Radioelectronics
Modified: 11/23/2007
Tags: impedance , polarization , rectangular , radiator , antenna array Path: Home / Publications / Archives Based on the asymptotic theory, characteristics of convex cylindrical antenna array consisting of director radiators are studied. To determine the distribution of currents of the radiator vibrators, the numeric projective method is used. Results of numeric computations are presented.
Proceedings of institutes of MV and ...
Modified: 11/22/2007
Tags: research , antenna array , asymptotic , vibrator Path: Home / Publications / Archives Based on the asymptotic diffraction theory methods, the problem of determining the near field of the convex cylindrical antenna array composed of aperture radiators is reduced to the boundary value problem in the single cell of the array, which is solved using the Galerkin method. The asymptotic theory is further developed, which provides representation of the radiator ...
Modified: 11/21/2007
Tags: antenna array , asymptotic , diffraction , Galerkin Path: Home / Publications / Archives Results of numeric modeling of impedance and polarizational characteristics of singlechannel printedcircuit radiator having circular polarization in the base of the antenna array are presented. Possibilities for optimizing the characteristics in the frequency band and scanning angle sector.
Proceedings of institutes of MV and SSO USSR. Radioelectronics
Modified: 11/20/2007
Tags: antenna array , modeling , impedance , polarization Path: Home / Publications / Archives A variant of constructing an ultrawideband wideangle antenna array based on a multilayer ribbon structure is suggested; the mathematical model of this antenna system is described and the results of numeric modeling are presented.
Speaking about the effectiveness of various ways to provide ultrawidebandness ...
Modified: 11/17/2007
Tags: wideband , ribbon , antenna array , scanning , AA Path: Home / Publications / Articles The results of research of characteristics of printedcircuit radiators in a plane phased antenna array is presented, based on the infinite plane antenna array model.
Antennas
Modified: 11/05/2007
Tags: model , research , radiator , antenna array Path: Home / Publications / Archives A method for solving boundary problems of electrodynamics for convex periodical antenna arrays by reduction to analogous boundary problems for flat surface using an iterative procedure is examined.
The work [1] describes one of the variants of the boundary layer method, based on the asymptotical solution of the bound system of parabolic ...
Modified: 04/19/2007
Tags: iterative , method , calculation , electromagnetic , field , conformal , antenna array , AA Path: Home / Publications / Articles Equations for waveguide, impedance and lens antenna arrays are formulated taking into account excitation conditions and interconnection between radiators. The arrays can be located on flat or curved surfaces.
Antenna arrays
Modified: 04/19/2007
Tags: antenna array , equation , waveguide , lens Path: Home / Publications / Archives 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 strips.
In the work [1] based on the model of an infinite antenna ...
Modified: 01/01/2007
Tags: boundary effect , wideband , antenna array , AA , strip Path: Home / Publications / Articles ... When placing radiant strips over an optimized waveguide array, contact ratio in frequency up to 2 and more in sector of angles ±55° in main planes can be obtained.
In the article [1] two requirements for radiant strips (RS) of a wideband wideangle antenna array (AA) are formulated: they must have small electric sizes and be located in a plane, wave impedance
Z
of which satisfies the condition
, where
W
=120π — wave impedance of the free space, in the entire working area.
This article ...
Modified: 12/14/2006
Tags: antenna array , rectangular , waveguide , AA Path: Home / Publications / Articles 1/ 2/ 3/ Sorted by relevance / Sort by date 
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