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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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The first three terms of the asymptotic decomposition of the transfer ration between two antennas with arbitrary directional diagrams and polarization types are obtained. The formulas for the distance that can be used to measure primary and lateral radiation with the given inaccuracy are derived. Radio engineering and electronics
Modified: 12/27/2005
Tags: directional diagram , antenna , asymptotic , polarization
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Researche and optimization of characteristics of lens antennas based on a homogenous dielectric sphere, taking into account the aberration effects, reflections, dielectric losses, radiator directional diagrams, matching layers and technological tolerance are carried out; the relation of antenna characteristics to its geometrical dimensions and dielectric parameters is derived; the maximum possible antenna characteristics are determined; ...
Modified: 12/16/2005
Tags: lens , antenna , dielectric , sphere , directional diagram
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The method of determining the antenna directional diagram using the amplitude and phase measurements in the Fresnel zone is considered; the mathematical rationale of the method is given along with the results of computer and experimental modeling and the samples of using when measuring the ...
Modified: 12/14/2005
Tags: antenna , directional diagram , Fresnel zone , measurement , far zone
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The problem of finding: distribution of current density on an open surface, satisfying the Meixner condition in its contour, using the given directional diagram is solved. The current is found as a series that converges to L2(s) surface norm. The conditions of realizability of the diagram are examined, and methods of determining current using the given unrealizable diagram are specified. ...
Modified: 12/12/2005
Tags: surface , Meixner , directional diagram , current
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GuidesArray Rectangular 0.2.14

GuidesArray Rectangular™ allows to execute quick engineering calculations of two-dimensional phased antenna arrays for rectangular waveguides on an electrodynamic level.


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