• 文献标题:   Use of Terahertz Photoconductive Sources to Characterize Tunable Graphene RF Plasmonic Antennas
  • 文献类型:   Article
  • 作  者:   CABELLOSAPARICIO A, LLATSER I, ALARCON E, HSU A, PALACIOS T
  • 作者关键词:   antenna, frequency tunability, graphene, photoconductor, terahertz, wireless communication
  • 出版物名称:   IEEE TRANSACTIONS ON NANOTECHNOLOGY
  • ISSN:   1536-125X EI 1941-0085
  • 通讯作者地址:   BarcelonaTech
  • 被引频次:   27
  • DOI:   10.1109/TNANO.2015.2398931
  • 出版年:   2015

▎ 摘  要

Graphene, owing to its ability to support plasmon polariton waves in the terahertz frequency range, enables the miniaturization and electrical tunability of antennas to allow wireless communications among nanosystems. One of the main challenges in the characterization and demonstration of graphene antennas is finding suitable terahertz sources to feed the antenna. This paper characterizes the performance of a graphene RF plasmonic antenna fed with a photoconductive source. The terahertz source is modeled and, by means of a full-wave EM solver, the radiated power as well as the tunable resonant frequency of the device is estimated with respect to material, laser illumination, and antenna geometry parameters. The results show that with this setup the antenna radiates terahertz pulses with an average power up to 1 mu W and shows promising electrical frequency tunability.