Wide Band Nano Circular Graphene Printed Antenna For Terahertz Transmission With Dgs
Résumé: A nano circular graphene printed antenna for terahertz transmission has been designed in this paper. Graphene is the material used for the patch with 60 nm of thickness and 0.2 eV of relaxation time. Several material substrates such as PTFE (εr = 2.1), polyimide (εr = 3.5), R03003 (εr = 3), R04003 (εr = 3.4), and Arlon AD (εr = 2.5) have been used to evaluate performances of the proposed nano printed antenna. Rogers 4003C substrate gives better performance compared to the other substrates used. The nano antenna operates at the frequencies of 3.26, 4.69, 5.64, and 6.95 THz with -30.7, -55,54, -37.434, and -26.812 dB of reflection coefficient, respectively. The gain is greater than 5 dB and the bandwidth obtained is more than 4 THz for all frequencies obtained, which is very satisfactory. Defected ground structure (DGS) technique was used. The proposed nano circular patch antenna can be used for several applications in terahertz transmissions such as optical transmission, new 5G/6G with high data traffic, etc.
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