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Titolo:
A truncated Floquet wave diffraction method for the full wave analysis of large phased arrays - Part I: Basic principles and 2-D cases
Autore:
Neto, A; Maci, S; Vecchi, G; Sabbadini, M;
Indirizzi:
Univ Siena, Coll Engn, I-53100 Siena, Italy Univ Siena Siena Italy I-53100 iv Siena, Coll Engn, I-53100 Siena, Italy Politecn Torino, Dept Elect, Turin, Italy Politecn Torino Turin ItalyPolitecn Torino, Dept Elect, Turin, Italy European Space Agcy, Estec, NL-2200 AG Noordwijk, Netherlands European Space Agcy Noordwijk Netherlands NL-2200 AG rdwijk, Netherlands
Titolo Testata:
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
fascicolo: 4, volume: 48, anno: 2000,
pagine: 594 - 600
SICI:
0018-926X(200004)48:4<594:ATFWDM>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
FINITE; SCATTERING; PLANE; EDGE;
Keywords:
electromagnetic diffraction; Floquet expansions; phased-array antennas;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Neto, A Univ Siena, Coll Engn, Via Laterina 8, I-53100 Siena, Italy Univ Siena Via Laterina 8 Siena Italy I-53100 -53100 Siena, Italy
Citazione:
A. Neto et al., "A truncated Floquet wave diffraction method for the full wave analysis of large phased arrays - Part I: Basic principles and 2-D cases", IEEE ANTENN, 48(4), 2000, pp. 594-600

Abstract

This two-part sequence deals with the formulation of an efficient method for the full wave analysis of large phased-array antennas. This is based on the method of moments (MoM) solution of a fringe integral equation (IE) in which the unknown function is the difference between the exact solution of the finite array and that of the associated infinite array. The unknown currents can be interpreted as produced by the held diffracted at the array edge, which is excited by the Floquet waves (FW's) pertinent to the infinite configuration. Following this physical interpretation, the unknown in the IE is efficiently represented by a very small number of basis functions withdomain on the entire array aperture. In order to illustrate the basic concepts, the first part of this sequence deals with the two-dimensional example of a linearly phased slit array. It is shown that the dominant phenomenonfor describing the current perturbation with respect to the infinite arrayis accurately represented in most cases by only three diffracted-ray-shaped unknown functions. This also permits a simple interpretation of the element-by-element current oscillation, which was recently described by other authors. The second part of this paper deals with the appropriate generalization of this method to three-dimensional (3-D) arrays.

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Documento generato il 29/11/20 alle ore 15:19:04