In this work we examine the recent efforts made in the design of either efficient or reconfigurable Fabry-Perot cavity leaky-wave antennas (FPC-LWAs) in the terahertz (THz) range. We start by discussing the radiating performance of an FPC-LWA consisting of a grounded dielectric slab (GDS) covered with a periodic arrangement of fishnet-like unit cells. This antenna design shows a rather high directivity at broadside, but is not capable of reshaping the pattern at fixed frequency. To this purpose, an FPC-LWA, where the periodic arrangement of fishnet-like unit cell is replaced by a uniform (i.e., non-patterned) graphene sheet, is considered to exploit the tunable properties of graphene. The performance of a graphene-based FPC-LWA is analyzed and improved by covering the structure with a high-permittivity material and slightly changing the position of graphene within the substrate. The radiating properties of all the THz structures proposed in this work are evaluated through fully-analytical techniques and validated through numerical results and full-wave simulations.
Fuscaldo, W., Tofani, S., Burghignoli, P., Baccarelli, P., & Galli, A. (2019). Terahertz Fabry-Perot Cavity Leaky-wave Antennas. In Progress in Electromagnetics Research Symposium (pp.1792-1798). Institute of Electrical and Electronics Engineers Inc. [10.1109/PIERS-Spring46901.2019.9017780].
Titolo: | Terahertz Fabry-Perot Cavity Leaky-wave Antennas | |
Autori: | ||
Data di pubblicazione: | 2019 | |
Rivista: | ||
Citazione: | Fuscaldo, W., Tofani, S., Burghignoli, P., Baccarelli, P., & Galli, A. (2019). Terahertz Fabry-Perot Cavity Leaky-wave Antennas. In Progress in Electromagnetics Research Symposium (pp.1792-1798). Institute of Electrical and Electronics Engineers Inc. [10.1109/PIERS-Spring46901.2019.9017780]. | |
Handle: | http://hdl.handle.net/11590/396303 | |
ISBN: | 978-1-7281-3403-1 | |
Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |