Front-end RF per radar a fascio conico in banda C
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Il mio argomento di ricerca � la progettazione di un sofisticato front-end radar a fascio di scansione operante in banda C (4-8 GHz) con frequenza centrale di 5,8 GHz. Il front-end sar� in grado di orientare il suo fascio principale a spirale conica. L'hardware sar� composto da due moduli. Il primo modulo � costituito da un'antenna planare 4*4 il cui pattern � conforme alle esigenze dei radar (cio� fascio conico e livello del lobo laterale inferiore a -15 dB). Il secondo modulo � una rete di sfasamento composta da accoppiatori ibridi e diodi varattori. In questo progetto saranno richieste conoscenze di teoria delle antenne, microonde ed elettronica. L'obiettivo finale di questo progetto � sviluppare un array di antenne planari con capacit� di scansione del fascio che migliorer� la nostra comprensione delle antenne e dei sistemi radar. I risultati saranno un array di antenne planari e una rete di beam steering. In passato sono stati progettati radar a 2,4 GHz, ma il loro diagramma del fascio non era conforme ai sistemi radar pratici. Come risorse materiali saranno necessari il substrato FR4, i diodi pin e i diodi varactor, mentre gli strumenti software utilizzati saranno Ansoft HFSS, ADS2009 e AutoCAD.
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