ALOHA TORINO-SYDNEY

"Analysis of Low-cost Original Holographic Antenna: Theoretical OveRvIew, NOtes, StudY, DesigN, and EasY Implementation"

 Coordinatore POLITECNICO DI TORINO 

 Organization address address: Corso Duca degli Abruzzi 24
city: TORINO
postcode: 10129

contact info
Titolo: Mr.
Nome: Stefano
Cognome: Raimondi
Email: send email
Telefono: 390116000000
Fax: 390116000000

 Nazionalità Coordinatore Italy [IT]
 Totale costo 327˙125 €
 EC contributo 327˙125 €
 Programma FP7-PEOPLE
Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
 Code Call FP7-PEOPLE-2007-4-1-IOF
 Funding Scheme MC-IOF
 Anno di inizio 2009
 Periodo (anno-mese-giorno) 2009-07-01   -   2012-06-30

 Partecipanti

# participant  country  role  EC contrib. [€] 
1    POLITECNICO DI TORINO

 Organization address address: Corso Duca degli Abruzzi 24
city: TORINO
postcode: 10129

contact info
Titolo: Mr.
Nome: Stefano
Cognome: Raimondi
Email: send email
Telefono: 390116000000
Fax: 390116000000

IT (TORINO) coordinator 327˙125.50

Mappa


 Word cloud

Esplora la "nuvola delle parole (Word Cloud) per avere un'idea di massima del progetto.

waves    surface    interference    impedance    width    electromagnetic    antennas    holograms    polarized    microstrip    substrate    hologram    holographic    images    first   

 Obiettivo del progetto (Objective)

'The proposal aimed to the theoretical investigation, the numerical study and the experimental characterization of holographic antennas (HA) based on microstrip technology. Studies of holograms have been started at optical frequencies to obtain virtual images as a result of interference of two polarized electromagnetic waves. The first applications of holograms at microwave frequency are date back to 70’, but nowadays the topic is at the edge of the interest of the scientific community. There are various research groups studying antennas based on this principle, since holographic surfaces offer new potentialities in this field. HA indicates a group of antennas in which the radiating aperture is formed by a conductive metallic like pattern on a surface-wave carrying grounded (multi)layer dielectric substrate. The hologram is obtained by recording the resulting interference between two polarized electromagnetic waves at the air-substrate interface. Exciting the hologram with only one of these two waves the second one is generated. The hologram is view as variable surface impedance: its synthesis is realized by width modulated microstrip lines. The periodic arrangement of such structures allows the generation of a substrate that supports slow waves, mandatory for the coupling between the surface and space waves. The control of the phase velocity, i.e. the surface impedance, is achieved by adequately vary the width of a microstrip line inside the unit cells. This method has been recently submitted to be patented. Antennas based on this principle present various advantages. The main important one is the polarization purity of the radiated field. The absence of the feeder in the front of the antenna eliminates the blockage; hence a higher gain can be achieved. The proposed low cost microstrip technology is widely employed in aero spatial application as well, because the reduce dimensions of the antennas and the possibility to build conformal configurations.'

Introduzione (Teaser)

Holographic antennas first studied around 40 years ago are again a hot topic given the potential of holographic images for a variety of applications. EU-funded researchers developed novel prototype devices based on the associated technology with excellent commercialisation potential.

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