Evaluation of Graphene-based Terahertz Photoconductive Antennas

Authors

1 Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI, 48109.

2 School of Electrical and Computer Engineering, University of Tehran, Tehran, Iran

Abstract

Plasmonic mode propagation properties of a graphene strip placed on a substrate is studied in THz range. Based on propagation properties (phase constant), a design guide for a dipole-like antenna made of graphene strips is presented. The input impedance and the radiation properties of such graphene-based antenna are investigated through full-wave numerical simulations. Full-wave simulations show that graphene antennas can provide higher input impedance along with the tunability of the resonance frequency that are two important design requirements in high performance terahertz photoconductive antenna sources and detectors.

Keywords


Volume 22, Issue 3 - Serial Number 3
Transactions on Nanotechnology (F)
June 2015
Pages 1299-1305
  • Receive Date: 05 May 2015
  • Revise Date: 22 December 2024
  • Accept Date: 27 July 2017