A truncated Floquet wave diffraction method for the full-wave analysis of large phased arrays .II. Generalization to 3-D cases

Author

Neto, Andrea ; Maci, Stefano ; Vecchi, Giuseppe ; Sabbadini, Marco

Author_Institution

Coll. of Eng., Siena Univ., Italy

Volume

48

Issue

4

fYear

2000

fDate

4/1/2000 12:00:00 AM

Firstpage

601

Lastpage

611

Abstract

For pt.I see ibid., vol.48, no.3, p.594-600 (2000). This paper deals with the generalization to three-dimensional (3-D) arrays of the truncated Floquet wave (TFW) diffraction method for the full-wave analysis of large arrays. This generalization potentially includes arrays consisting of microstrip excited slots, cavity-backed apertures, and patches. The formulation is carried out first by deriving an appropriate fringe integral equation (IE) and next by defining entire domain basis functions in terms of global-array functions shaped as TFW diffracted rays whose analytical expression is derived on the basis of prototype canonical problems. The efficiency and the accuracy of this method is demonstrated by comparison with the results of an element-by-element full wave approach for a rectangular slot array

Keywords

antenna phased arrays; aperture antennas; electromagnetic wave diffraction; integral equations; microstrip antenna arrays; slot antenna arrays; 3D arrays; TFW diffracted rays; accuracy; cavity-backed apertures; efficiency; element-by-element full wave approach; entire domain basis functions; fringe integral equation; full-wave analysis; global-array functions; large phased arrays; microstrip excited slots; patches; prototype canonical problems; rectangular slot array; truncated Floquet wave diffraction method; Apertures; Diffraction; Frequency selective surfaces; Geometry; Integral equations; Microstrip antenna arrays; Phased arrays; Prototypes; Scattering; Two dimensional displays;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.843675

Filename

843675