Reconfigurable THz Plasmonic Antenna Based on Few-Layer Graphene with High Radiation Efficiency
AbstractGraphene plasmonic antennas possess two significant features that render them appealing for short-range wireless communications, notably, inherent tunability and miniaturization due to the unique frequency dispersion of graphene and its support for surface plasmon waves in the terahertz band. In this letter, dipole-like antennas using few-layer graphene are proposed to achieve a better trade-off between miniaturization and radiation efficiency than current monolayer graphene antennas. The characteristics of few-layer graphene antennas are evaluated and then compared with those of antennas based on monolayer graphene and graphene stacks, which could also provide such improvements. To this end, first, the propagation properties of one-dimensional and two-dimensional plasmonic waveguides based on the aforementioned graphene structures are obtained by transfer matrix theory and finite-element simulation, respectively. Second, the antennas are investigated as three-dimensional structures using a full-wave solver. Results show that the highest radiation efficiency among the compared designs is achieved with the few-layer graphene, while the highest miniaturization is obtained with the even mode of the graphene stack antenna. View Full-Text
Share & Cite This Article
Hosseininejad, S.E.; Neshat, M.; Faraji-Dana, R.; Lemme, M.; Haring Bolívar, P.; Cabellos-Aparicio, A.; Alarcón, E.; Abadal, S. Reconfigurable THz Plasmonic Antenna Based on Few-Layer Graphene with High Radiation Efficiency. Nanomaterials 2018, 8, 577.
Hosseininejad SE, Neshat M, Faraji-Dana R, Lemme M, Haring Bolívar P, Cabellos-Aparicio A, Alarcón E, Abadal S. Reconfigurable THz Plasmonic Antenna Based on Few-Layer Graphene with High Radiation Efficiency. Nanomaterials. 2018; 8(8):577.Chicago/Turabian Style
Hosseininejad, Seyed E.; Neshat, Mohammad; Faraji-Dana, Reza; Lemme, Max; Haring Bolívar, Peter; Cabellos-Aparicio, Albert; Alarcón, Eduard; Abadal, Sergi. 2018. "Reconfigurable THz Plasmonic Antenna Based on Few-Layer Graphene with High Radiation Efficiency." Nanomaterials 8, no. 8: 577.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.