Abstract
We provide a preliminary study of a Graphene fractal antenna operating at THz frequencies with the opportunity to modulate the emission. There are many advantages of the fractal design, namely multiband/wideband ability, and, a smaller, lighter and simpler configuration for higher gain, that can benefit from the coupling with Graphene, the thinnest and strongest of materials exhibiting very high electrical conductivity and tunability. This paper proposes a conceptual background for the study and presents some preliminary results on the electromagnetic emission simulations undertaken.
Highlights
Fractal antennas are receiving attention for the future of wireless communication because of their wideband and multiband capabilities, the opportunity of fractal geometries to drive multiple resonances and the ability to make smaller and lighter antennas, with fewer components and radiative elements less circuitry and higher gains
Small and extremely high-frequency nanometric fractal antennas based on Graphene, a one-atom-thick, two-dimensional carbon crystal, may enhance wireless communications for commercial and military applications
Nano antennas based on surface plasmon polaritons enable the conversion of light from free space into sub-wavelength volumes establishing a way of communication using free electron propagation within networks of nanosized devices
Summary
Fractal antennas are receiving attention for the future of wireless communication because of their wideband and multiband capabilities, the opportunity of fractal geometries to drive multiple resonances and the ability to make smaller and lighter antennas, with fewer components and radiative elements less circuitry and higher gains. Small and extremely high-frequency nanometric fractal antennas based on Graphene, a one-atom-thick, two-dimensional carbon crystal, may enhance wireless communications for commercial and military applications. Nano antennas based on surface plasmon polaritons enable the conversion of light from free space into sub-wavelength volumes establishing a way of communication using free electron propagation within networks of nanosized devices. This approach can be of high impact for many applications, including biochemical sensors, reconfigurable meta-surfaces, compact optoelectronic devices, advanced health monitoring, drug delivery systems and wireless nano-sensor networks for biological and chemical attack prevention. Dynamic control and reconfigurable properties of these antennas are very desirable for the above applications. Owing to its unique electronic properties, Graphene has recently been identified as a promising platform to build integrated active plasmonic nanoantennas for a wide wavelength range in the mid-infrared, i.e. 10 - 100 THz
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