Archivio Istituzionale della RicercaThis work presents the results of a study on electronically scanning antennas based on liquid crystals. In particular, the study aims at assessing the feasibility of a leaky wave antenna providing a continuous scanning at fixed frequency with a single voltage control. The radiating part is constituted by a parallel plate waveguide partially filled by liquid crystals with gradually modulated, electrically small slots etched on the upper wall. The feeding network is realized through a pillbox network. The concept is first validated through the realization and experimental characterization of a static antenna prototype. Preliminary experimental results on a reconfigurable antenna prototype are also presented.
STUDY OF RECONFIGURABLE LEAKY WAVE ANTENNAS BASED ON LIQUID CRYSTALS FOR CONTINUOUS BEAM SCANNING WITH A SINGLE CONTROL / Martini, E.; Pavone, S. C.; Albani, M.; Martorelli, V.; Giordanengo, G.; Sozio, V.; Ferraro, A.; Beccherelli, R.; Caminita, F.; Francavilla, M. A.; Vernì, F.; Bandinelli, M.; Toso, G.; Vecchi, G.; Maci, S.. - (2018). (Intervento presentato al convegno 39th ESA Antenna Workshop on Innovative Antenna Systems and Technologies for Future Space Missions tenutosi a Noordwijk, The Netherlands nel 02-05 October 2018).
STUDY OF RECONFIGURABLE LEAKY WAVE ANTENNAS BASED ON LIQUID CRYSTALS FOR CONTINUOUS BEAM SCANNING WITH A SINGLE CONTROL
G. Giordanengo;M. A. Francavilla;F. Vernì;G. Vecchi;
2018
Abstract
This work presents the results of a study on electronically scanning antennas based on liquid crystals. In particular, the study aims at assessing the feasibility of a leaky wave antenna providing a continuous scanning at fixed frequency with a single voltage control. The radiating part is constituted by a parallel plate waveguide partially filled by liquid crystals with gradually modulated, electrically small slots etched on the upper wall. The feeding network is realized through a pillbox network. The concept is first validated through the realization and experimental characterization of a static antenna prototype. Preliminary experimental results on a reconfigurable antenna prototype are also presented.
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https://hdl.handle.net/11583/2724422
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