[6p-C16-1~17] Latest Application Researches and Future Prospects of Functional Atomic Layers

[6p-C16-2] Graphene-based optically transparent dipole antenna

〇(M2)Shohei Kosuga¹, Ryosuke Suga¹, Osamu Hashimoto¹, Shinji Koh¹ (1.Aoyama Gakuin Univ.)

Keywords:antenna, graphene, microwave

We fabricated an optically transparent dipole antenna based on chemical vapor deposition (CVD)-grown monolayer graphene on an optically transparent quartz substrate and characterized its properties in microwave bands. The measurement of the reflection coefficient for the dipole antenna revealed that ~90% of the microwave power transmitted to the CVD monolayer graphene of the antenna element. By measuring transmission coefficients, we demonstrated that the graphene dipole antenna radiated microwave power around the operational frequency (~20.7GHz). The transmission coefficient of the cross-polarization condition was lower by 20 dB than that of the co-polarization condition, which indicated that most of the power was radiated with horizontal polarization. The results suggest that the fabricated graphene dipole antenna operated as a dipole antenna.