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Design, Simulation, Manufacturing and Characterization of a tunable Beam Steering device based on Liquid Crystals.

Sergio Vera Andreu

Design, Simulation, Manufacturing and Characterization of a tunable Beam Steering device based on Liquid Crystals.

Rel. Guido Perrone, Morten Andreas Geday, Mario García De Blas. Politecnico di Torino, Corso di laurea magistrale in Communications And Computer Networks Engineering (Ingegneria Telematica E Delle Comunicazioni), 2021

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Abstract:

In this project a new high performing 2D beam deflector with no movable parts will be developed. The device will be composed by two cascaded liquid crystal cells, each one steering the beam in one dimension. The active area of the device will be 1.08 × 1.08 mm2. The cells will be composed by 144 electrodes with 7.5 µm pitch width, driven by a custom made 12-bit Pulse Width Modulation (PWM) electronical driver. Direct Laser Writing (DLW) techniques will be employed to obtain high-resolution structures, with a high fill factor, in glass wafers coated with Indium-Tin Oxide (ITO) in order. A 144x144 efficiency map will be presented, for a maximum diagonal steering angle of ±3,42o. The results will be accompanied by a simulation based on Fresnel and Fraunhofer diffraction approximation.

Relatori: Guido Perrone, Morten Andreas Geday, Mario García De Blas
Anno accademico: 2020/21
Tipo di pubblicazione: Elettronica
Numero di pagine: 84
Soggetti:
Corso di laurea: Corso di laurea magistrale in Communications And Computer Networks Engineering (Ingegneria Telematica E Delle Comunicazioni)
Classe di laurea: Nuovo ordinamento > Laurea magistrale > LM-27 - INGEGNERIA DELLE TELECOMUNICAZIONI
Aziende collaboratrici: Universidad Politecnica de Madrid
URI: http://webthesis.biblio.polito.it/id/eprint/19287
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