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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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Wave diffraction by a stripline array with passive loads



The algorithm of estimating the density of surface magnetic current induced on the array aperture has been obtained as a result of the rigorous solution of the problem of plane wave diffraction on a double periodic array of stripline elements of any shape with passive loads. Electromagnetic wave diffraction

Modified: 03/26/2008
Tags: wave , diffraction , current , antenna array
Path: Home / Publications / Archives / 2008 / Wave diffraction …



Electrodynamics of substances with simultaneously negative electrical and magnetic permeabilities



... materials, such as magnetic metals or magnetic semiconductors, having simultaneously negative electrical and magnetic permeabilities are considered. One finds that the refractive index with respect to vacuum is negative; that the Poynting vector and the wave vector of propagating EM waves have opposite signs; that the sign of the Doppler effect is opposite that, for ordinary materials and that the Cherenkov radiation cone is directed backwards rather than forwards. Finally, the question of the mechanical ...

Modified: 04/23/2007
Tags: electrodynamic , wave , Poynting , Doppler
Path: Home / Publications / Archives / 2007 / Electrodynamics of substances …



Variational methods for problems of wave dispersion



Using the generalized variational principle, the article derives the stationary formulas for metallic body dispersion diagram, with variation going to zero for exact values of surface currents, generated on the body by the primary incident wave. Radio engineering and electronics

Modified: 12/25/2005
Tags: wave , dispersion , surface current
Path: Home / Publications / Archives / 2005 / Variational methods …



About the power, drawn by the receiving antenna from the incident field



Are received various variants of formulas for computing the power, received by the receiver, which take into account the discrepancy between the ends of the feeder path, when the form of the incident wave is arbitrary. In the special case where the receiver is completely concordant with the path, one of them grades into the Burstein-Kinber formula. For different additional conditions, the high bound of the received power is determined and the optimal ...

Modified: 12/08/2005
Tags: power , antenna , feeder , wave
Path: Home / Publications / Archives / 2005 / About the …


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GuidesArray Coaxial 0.1.2

GuidesArray Coaxial™ is used by engineers for projecting and exploring the characteristics of two-dimensional periodic phased antenna arrays for coaxial waveguides.


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