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). (39th ESA Antenna Workshop on Innovative Antenna Systems and Technologies for Future Space Missions Noordwijk, The Netherlands 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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