In this work, the tunable properties of nematic liquid crystals are exploited in order to design a Fabry-Perot cavity (FPC) leaky-wave antenna (LWA) with beam steering capability at fixed frequency in the THz range. The considered design is a grounded dielectric slab covered with a multistack of alternating layers of low- and high-permittivity dielectric materials, consisting of nematic liquid crystals and alumina thin films, respectively. The former allows for achieving the beam-steering capability at a fixed frequency. Full-wave simulations confirmed the pattern reconfigurability of the device, thus opening very interesting possibilities for the realization of reconfigurable THz antennas.
Fuscaldo, W., Tofani, S., Zografopoulos, D.C., Baccarelli, P., Burghignoli, P., Beccherelli, R., et al. (2017). A reconfigurable multilayered THz leaky-wave antenna employing liquid crystals. In 2017 11th European Conference on Antennas and Propagation, EUCAP 2017 (pp.849-851). Institute of Electrical and Electronics Engineers Inc. [10.23919/EuCAP.2017.7928615].
A reconfigurable multilayered THz leaky-wave antenna employing liquid crystals
BACCARELLI, PAOLO;
2017-01-01
Abstract
In this work, the tunable properties of nematic liquid crystals are exploited in order to design a Fabry-Perot cavity (FPC) leaky-wave antenna (LWA) with beam steering capability at fixed frequency in the THz range. The considered design is a grounded dielectric slab covered with a multistack of alternating layers of low- and high-permittivity dielectric materials, consisting of nematic liquid crystals and alumina thin films, respectively. The former allows for achieving the beam-steering capability at a fixed frequency. Full-wave simulations confirmed the pattern reconfigurability of the device, thus opening very interesting possibilities for the realization of reconfigurable THz antennas.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
