ハシモト オサム   HASHIMOTO Osamu
  橋本 修
   所属   青山学院大学  理工学部 電気電子工学科
   職種   教授
言語種別 日本語
発行・発表の年月 2017/06
形態種別 学術雑誌
査読 査読有り
標題 "Graphene-based Optically Transparent Dipole Antenna"
執筆形態 共同
掲載誌名 Applied Physics Letters
掲載区分国外
巻・号・頁 233102_1-233102_3頁
著者・共著者 Shohei Kosuga, Ryosuke Suga, *Osamu Hashimoto, Shinji Koh
概要 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 measurements of the reflection coefficients 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 (∼20.7 GHz). The operational frequency of the graphene dipole antenna (∼20.7 GHz) shifted to a higher frequency than that of the Au dipole antenna with the same structure (∼9.2 GHz), which suggests that monolayer graphene behaves not as a metal but as a dielectric material.