▎ 摘　　要

Graphene nano ribbon based terahertz patch antenna on polyimide substrate is designed and its radiation characteristics are investigated in the 725-775 GHz band. The terahertz communication system consists of higher data rate transmission, low transmit power with secured wireless communication. The proposed antenna consists of graphene nano ribbon as radiating patch and also the ground plane separated by a 20 mu m thin polyimide substrate. The antenna has achieved the broad impedance bandwidth (>5%) in the band of operation. The design has yielded a peak gain of 5.71dB at 750 GHz. The antenna is simulated by using the finite element method based simulator Ansys - HFSS. (C) 2014 Elsevier GmbH. All rights reserved.