Dielectric flat lenses with cylindrically distributed parameters for millimeter-wave applications
| Autor: | Jordi Romeu, Lluis Jofre, Marc Imbert |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions, Universitat Politècnica de Catalunya. ANTENNALAB - Grup d'Antenes i Sistemes Radio |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Permittivity
Engineering Inhomogeneous dielectric flat lens design Cylindrically distributed parameters Beam steering Relative permittivity 02 engineering and technology Dielectric Radiating single element Beam-scanning law.invention Optics Inhomogeneous media law Position (vector) Millimetre wave antennas Gradient-index axis Lens antennas Constant-index axis 0202 electrical engineering electronic engineering information engineering Effective relative permittivity Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Antenes i agrupacions d'antenes [Àrees temàtiques de la UPC] Millimeterwave frequency business.industry Flat lens 020208 electrical & electronic engineering High-data rate wireless communications 020206 networking & telecommunications Cylindrical effective parameter distribution Lens (optics) Broadband networks Beam-steering capability Performance evaluation Antennas (Electronics) Radio networks switch element reduction Antenes (Electrònica) Directive antennas business Beam (structure) |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Recercat. Dipósit de la Recerca de Catalunya instname |
| Popis: | The design and performance evaluation of an inhomogeneous dielectric flat lens with the effective relative permittivity cylindrically distributed is presented. In order to achieve high-data rate wireless communications for future broadband networks at millimeter-wave frequencies it is essential to dispose of high directive antennas with beamsteering capabilities. In consequence, in this paper we introduce a novel design of an inhomogeneous dielectric flat lens with an effective gradient-index in one axis, while a constant-index is maintained along the other one. With this cylindrical effective parameter distribution, the beam-scanning can be performed in one plane by moving (or selecting) the position of a radiating single element along the gradient-index axis, whereas the beam can be maintained invariant in the other direction, in which the effective parameters are kept constant, despite changing the radiating element position in this particular axis. In this way, the beamscanning can be achieved in the constant-index axis of the lens by means of a different technique (e.g. frequency-scanned array), in order to reduce the switch elements needed, to finally perform the scan in both theta and phi directions of the space. |
| Databáze: | OpenAIRE |
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