ETD system

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Tesi etd-02282013-122011


Thesis type
Tesi di dottorato di ricerca
Author
BIANCHI, DAVIDE
URN
etd-02282013-122011
Title
Advanced Techniques for the synthesis of wideband array antennas
Settore scientifico disciplinare
ING-INF/02
Corso di studi
INGEGNERIA
Commissione
tutor Prof. Biffi Gentili, Guido
tutor Prof. Monorchio, Agostino
Parole chiave
  • wideband antennas
  • multiobjective optimization
  • genetic algorithm
  • conformal arrays
Data inizio appello
07/06/2013;
Consultabilità
completa
Riassunto analitico
Antenna arrays are the most effective solution for radiating systems that need high directivity and low sidelobe level, such as radio astronomy, remote sensing, and radar applications. Typically, antenna arrays are only designed for narrowband applications, thus several radiating systems are to be employed, one per each operating bandwidth. Recently, with the aim of reducing the number of antenna system onboard a vehicle, such as aircrafts, satellites or terrestrial vehicles, a great interest has been focused on techniques for designing wideband antenna arrays. Therefore most of the dissertation deals with novel techniques for the synthesis of both narrowband and wideband planar antenna array, aiming to provide a pretty good wide-angle scanning while imposing several constraints to meet imposed by the designer. In addition, an advanced technique for the synthesis of a wideband miniaturized single-element antenna placed in realistic environments has been developed. Furthermore an hybrid technique for the analysis of conformal arrays of antennas as well several synthesis procedures have been developed. Mutual coupling has been also taken into account.
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