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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 2D cases
Autore: Neto, A; Maci, S; Vecchi, G; Sabbadini, M;
 Indirizzi:
 Univ Siena, Coll Engn, I53100 Siena, Italy Univ Siena Siena Italy I53100 iv Siena, Coll Engn, I53100 Siena, Italy Politecn Torino, Dept Elect, Turin, Italy Politecn Torino Turin ItalyPolitecn Torino, Dept Elect, Turin, Italy European Space Agcy, Estec, NL2200 AG Noordwijk, Netherlands European Space Agcy Noordwijk Netherlands NL2200 AG rdwijk, Netherlands
 Titolo Testata:
 IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
fascicolo: 4,
volume: 48,
anno: 2000,
pagine: 594  600
 SICI:
 0018926X(200004)48:4<594:ATFWDM>2.0.ZU;26
 Fonte:
 ISI
 Lingua:
 ENG
 Soggetto:
 FINITE; SCATTERING; PLANE; EDGE;
 Keywords:
 electromagnetic diffraction; Floquet expansions; phasedarray 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, I53100 Siena, Italy Univ Siena Via Laterina 8 Siena Italy I53100 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 2D cases", IEEE ANTENN, 48(4), 2000, pp. 594600
Abstract
This twopart sequence deals with the formulation of an efficient method for the full wave analysis of large phasedarray 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 twodimensional 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 diffractedrayshaped unknown functions. This also permits a simple interpretation of the elementbyelement current oscillation, which was recently described by other authors. The second part of this paper deals with the appropriate generalization of this method to threedimensional (3D) arrays.
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Documento generato il 29/11/20 alle ore 15:19:04