The Elliptic Gaussian Beam Scattering on Phased Antenna Array With Rectangular Waveguides

Gribovsky, A. V.; Yeliseyev, O. A.

doi:10.2528/pierm11101902

Cited by 2 publications

(3 citation statements)

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“…The studies conducted in this work and the results published in the paper [17], where the case of s-polarization is examined, allow drawing general conclusions. The effects of the restriction of the patterns of scattered field, the shift of the maximum in the pattern of transmitted field are observed at frequencies near the "sliding" points.…”

Section: Numerical Resultsmentioning

confidence: 63%

“…The narrowing effect of the transmitted field pattern has been already observed [16] when characteristics of the two-dimensional Gaussian beam scattering from a single-periodic strip array were studied. The effects of narrowing the pattern of the scattered field and the shift of the maximum of pattern of the transmitted field, in the case of oblique incidence of spolarized elliptical beam, are described and explained in the paper [17]. For clearness sake the tree-dimensional patterns across the intensity are evaluated.…”

Section: Numerical Resultsmentioning

confidence: 99%

“…In [15] the results of studies of electrodynamic characteristics of the Gaussian circular cross section wave beam scattering in case of normal incidence on a two-dimensional periodic structure and the calculation algorithm are presented. Oblique incidence of s-polarized beam was considered in the paper [17]. The linearly polarized beams of p-polarization, or beams with a combination of both polarizations, in which the electric field vector of each component has a nonzero pand s-projections, are widely used in practice.…”

Section: Introductionmentioning

confidence: 99%

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Spatial modifications of three-dimensional elliptic Gaussian beam scattered by two-dimensional periodic array.

Gribovsky

Yeliseyev

2012

AEM

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The diffraction problem of a three-dimensional elliptic ppolarized Gaussian beam on an aperture array of rectangular holes is solved. The new algorithm for the solution of threedimensional scattering problems of linearly polarized wave beams on two-dimensional periodic structures is offered. The given algorithm allows exploring of wave beams with any allocation of a field on cross section. The case of oblique incidence of linearly polarized elliptic Gaussian wave beam on two-dimensional periodic structure is viewed. As structure the rectangular waveguides phased antenna array is chosen. The elliptic shape of a beam cross section gives the chance to proportion energy of an incident field in a plane of an antenna array in the chosen direction. The frequency dependence of the reflection coefficient intensity for the Gaussian beam is calculated. For the analysis of patterns of the reflected and transmitted beams in a far zone the frequencies on which the strongest interaction between next waveguides channels is observed have been chosen. Dynamics of patterns transformation of the reflected and transmitted beams depending on the form of cross-section and a polarization direction of an incident beam on different frequencies is investigated. It is determined that shape of the pattern of reflected and transmitted beams (symmetry, asymmetry, bifurcation, amplitude, width) depends on chosen spatial orientation of the ellipse axes of the cross section in the incident beam. Frequency ranges, in which the form of the reflected and transmitted beams is not Gaussian, are defined. The nature of transformation of the patterns of scattered beams was examined. Narrowing effect of the pattern of transmitted beam and deformation of the pattern of reflected beam is detected. A physical explanation of these effects is given. The results are presented in the form of two-and threedimensional patterns of the scattered field of beams in the far field.

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Section: Numerical Resultsmentioning

confidence: 63%

Section: Numerical Resultsmentioning

confidence: 99%