Essays about: "lens antenna"

Showing result 6 - 10 of 24 essays containing the words lens antenna.

1. 6. Design of a Dielectric Radome using a Ray-Tracing Model for Satellite Communications

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Flores Espinosa Núria; [2023]
   Keywords : Dielectric radome; Ray tracing; Array antenna; Lens antenna; Satellite communications; Radom dielèctric; Traçat de Rajos; Arranjament d’antenes; Antena de lent; Comunicacions per satèl·lit; Dielektrisk radome; Strålspårning; Gruppantenn; Linsantenn; Satellitkommunikation;

   Abstract : In recent years, there has been a huge increase in the use of satellite communications. This has led to a need for more capacity, which can be solved by moving towards higher frequency bands in search of higher bandwidths. READ MORE

3. 7. 3D Printed Modulated Geodesic Lens Antenna With Even Coverage in the Far-Field

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Harald Lindohf; Marcus Wikner; [2022]
   Keywords : 3D-printed; geodesic; modulated; Luneburg; beamforming; lens antenna;

   Abstract : The development of 5G and 6G entails new demandson antennas. This includes fast and reliable connections to a largenumber of devices. A wider area of coverage, and thus moreantennas are also expected, which is problematic for the expensiveantennas used today. To meet those demands, a geodesic lensantenna has been proposed. READ MORE

4. 8. Scanning range extension by combining arrays with lenses

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Hairu Wang; [2022]
   Keywords : Dome Antenna; Dielectric Lens; Array Antenna; Kupolantenn; Dielektrisk lins; Array antenn;

   Abstract : Array antennas, and more specifically phased array antennas, are widely used in radar detection and communication systems because of their excellent beam scanning ability and simple control. Generally speaking, the scanning function can be realized in two ways: mechanically or electronically. READ MORE

5. 9. Low-profile fully-metallic Luneburg lens antenna

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Justine Djounidi; [2022]
   Keywords : Beam Scanning; Luneburg Lens Antenna; Fully-metallic; Millimeter Wave; Vinkelskanning; Luneburg Linsantenn; Fullt Metalliskt; Millimetervåg;

   Abstract : Modern communication systems face new technological challenges, such as the narrowness and overload of the conventional frequency bands employed for these applications. Nowadays, communication systems are expected to operate at higher frequencies, such as the mm-wave band. READ MORE

6. 10. Dual-polarized geodesic lens in sub-THz

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Wenfu Fu; [2022]
   Keywords : beam scanning; dual polarization; fully metallic; geodesic lens; Luneburg lens antenna; THz; strålskanning; korspolarisering; fullt metallisk; geodetisk lins; Luneburg linsantenn; THz;

   Abstract : In the sub-THz frequency range, the geodesic lens can realize low losses and beam scanning capability with high gain and high aperture efficiency due to its fully metallic property and rotational symmetry. Therefore, in high-frequency applications, a geodesic lens is considered a more promising solution in comparison to phased arrays or other beamforming techniques. READ MORE