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Projecte llegit

Títol: Design of an Ultra-Wideband Geodesic Lens Antenna for Communication Applications

Estudiants que han llegit aquest projecte:

Director/a: ÚBEDA FARRE, EDUARD

Departament: TSC

Títol: Design of an Ultra-Wideband Geodesic Lens Antenna for Communication Applications

Data inici oferta: 07-05-2024     Data finalització oferta: 07-05-2024


Estudis d'assignació del projecte:
    DG ENG AERO/SIS TEL
Tipus: Individual
 
Lloc de realització: ERASMUS
 
        Supervisor/a extern: Óscar Quevedo Teruel
        Institució/Empresa: Kungliga Tekniska Högskolan
        Titulació del Director/a: Full Professor
 
Paraules clau:
Electromagnetics, geodesic lenses, lens antennas, microwave engineering, ultra-wideband operation.
 
Descripció del contingut i pla d'activitats:
Geodesic lenses have demonstrated a notable characteristic of frequency independence. Nevertheless, existing antenna configurations have been constrained in their bandwidth
owing to limitations in their feeding mechanisms. With the advent of advanced communication systems, there arises a pressing need for wideband antennas capable of facilitating increased data transmission rates.
This work aims to investigate the constraints associated with employing geodesic lenses and ascertain their viability for facilitating antenna operation within the frequency range of 10-40 GHz while preserving good radiation
patterns. The research methodology entails a comprehensive examination of the geodesic lens and other antenna components utilizing the commercial software CST.
This work is developed in the Kunglia Tekniska Högskolan (Sweden), in the frame of the Mobility Programe Erasmus+.
 
Overview (resum en anglès):
The growing demand for higher data rates and increased device connectivity, driven by advancements in communication technologies such as streaming and the Internet of Things (IoT), intensifies the demand for greater bandwidth. This thesis, "Design of an Ultra-Wideband Geodesic Lens Antenna for Communications Applications" presents an innovative solution that operates within the 10-40 GHz frequency range while maintaining consistent radiation patterns, a challenging task due to the frequency variations that typically distort radiation characteristics. Geodesic lens antennas are highly efficient solutions since they have very low absorption losses. However, their bandwidth is usually limited by their feed. The core of the thesis focuses on developing an antenna that has a feed with a 4:1 bandwidth ratio, followed by a geodesic generalized Luneburg lens that effectively transforms the waves emitted from the feed. Additionally, an array of four stacked flares is included to increase the directivity. This work demonstrates the suitability of implementing a geodesic generalized Luneburg lens antenna for ultra-wideband applications. This work has been developed in the Kungliga Tekniska Högskolan (Sweden), in the frame of the Mobility Programe Erasmus+.

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